tag:blogger.com,1999:blog-27837147991643456182024-02-07T08:57:04.611+05:30Tech-science Box Unknownnoreply@blogger.comBlogger48125tag:blogger.com,1999:blog-2783714799164345618.post-59483089297537616122020-10-08T21:44:00.010+05:302020-10-08T22:07:24.112+05:30Algebra Formulas collection<p><span></span></p><ol style="box-sizing: border-box; font-family: HelveticaNeue-Light, "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 16px; letter-spacing: 1.1px; margin: 0px 0px 28px; padding: 0px;"><li style="box-sizing: border-box; list-style-type: decimal;"><span style="background-color: white;">(a+b)<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2 </span>= a<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2 </span>+ b<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2 </span>+ 2ab</span></li><li style="box-sizing: border-box; list-style-type: decimal;"><span style="background-color: white;">(a-b)<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2 </span>= a<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2 </span>+ b<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2 </span>– 2ab</span></li><li style="box-sizing: border-box; list-style-type: decimal;"><span style="background-color: white;">(a+b) (a-b) = a<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2 </span>– b<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span></span></li><li style="box-sizing: border-box; list-style-type: decimal;"><span style="background-color: white;">(x + a)(x + b) = x<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + (a + b)x + ab</span></li><li style="box-sizing: border-box; list-style-type: decimal;"><span style="background-color: white;">(x + a)(x – b) = x<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + (a – b)x – ab</span></li><li style="box-sizing: border-box; list-style-type: decimal;"><span style="background-color: white;">(a + b)<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">3</span> = a<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">3</span> + b<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">3</span> + 3ab(a + b)</span></li><li style="box-sizing: border-box; list-style-type: decimal;"><span style="background-color: white;">(a – b)<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">3</span> = a<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">3</span> – b<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">3</span> – 3ab(a – b)</span></li><li style="box-sizing: border-box; list-style-type: decimal;"><span style="background-color: white;">(x – a)(x + b) = x<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + (b – a)x – ab</span></li><li style="box-sizing: border-box; list-style-type: decimal;"><span style="background-color: white;">(x – a)(x – b) = x<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> – (a + b)x + ab</span></li><li style="box-sizing: border-box; list-style-type: decimal;"><span style="background-color: white;">(x + y + z)<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> = x<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + y<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + z<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + 2xy + 2yz + 2xz</span></li><li style="box-sizing: border-box; list-style-type: decimal;"><span style="background-color: white;">(x + y – z)<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> = x<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + y<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + z<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + 2xy – 2yz – 2xz</span></li><li style="box-sizing: border-box; list-style-type: decimal;"><span style="background-color: white;">(x – y + z)<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> = x<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + y<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + z<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> – 2xy – 2yz + 2xz</span></li><li style="box-sizing: border-box; list-style-type: decimal;"><span style="background-color: white;">(x – y – z)<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> = x<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + y<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + z<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> – 2xy + 2yz – 2xz</span></li><li style="box-sizing: border-box; list-style-type: decimal;"><span style="background-color: white;">x<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">3</span> + y<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">3</span> + z<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">3</span> – 3xyz = (x + y + z)(x2 + y2 + z2 – xy – yz -xz)</span></li><li style="box-sizing: border-box; list-style-type: decimal;"><span style="background-color: white;">x<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2 </span>+ y<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> =½ [(x + y)<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + (x – y)<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span>]</span></li><li style="box-sizing: border-box; list-style-type: decimal;"><span style="background-color: white;">(x + a) (x + b) (x + c) = x<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">3</span> + (a + b +c)x<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + (ab + bc + ca)x + abc</span></li><li style="box-sizing: border-box; list-style-type: decimal;"><span style="background-color: white;">x<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">3</span> + y<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">3</span>= (x + y) (x<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> – xy + y<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span>)</span></li><li style="box-sizing: border-box; list-style-type: decimal;"><span style="background-color: white;">x<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">3</span> – y<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">3</span> = (x – y) (x<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + xy + y<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span>)</span></li><li style="box-sizing: border-box; list-style-type: decimal;"><span style="background-color: white;">x<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + y<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + z<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> -xy – yz – zx = ½ [(x-y)<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + (y-z)<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span> + (z-x)<span style="box-sizing: border-box; font-size: 12px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">2</span>]</span></li></ol><p style="background-color: white; box-sizing: border-box; color: #333333; font-family: HelveticaNeue-Light, "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 16px; letter-spacing: 1.1px; margin: 0px 0px 1.3em; overflow-wrap: break-word; padding: 0px;"><br /></p>Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-14527146930746188022019-07-10T22:00:00.002+05:302019-07-10T22:12:23.040+05:30Sacred Games 2 Leaked<div dir="ltr" style="text-align: left;" trbidi="on">
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<b><u>Description of Scared Game 2</u></b></h2>
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The second season of Sacred Games will pick up from where Sartaj Singh, played by Saif Ali Khan, and Ganesh Gaitonde left the game incomplete. Sartaj will learn that there are bigger twists in the game that lies ahead of him and will perhaps deal with the dilemma the trailer ends with - "Is the city worth saving?"</div>
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-5051312272218443792019-07-10T13:18:00.002+05:302019-07-10T22:19:17.067+05:30UPSC ESE / IES 2019 (Prelims Exam) Question paper & Key <div dir="ltr" style="text-align: left;" trbidi="on">
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-72025451666626992102019-07-10T13:05:00.000+05:302019-07-10T13:05:16.156+05:30GATE CUT-OFF 2018 & 2019<div dir="ltr" style="text-align: left;" trbidi="on">
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-18489892705806344952019-07-10T13:02:00.002+05:302019-07-10T14:55:59.492+05:30GATE 2019 CUT-OFF<div dir="ltr" style="text-align: left;" trbidi="on">
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-10500201546056761162019-07-10T13:01:00.001+05:302019-07-10T13:01:16.297+05:30ESE PRE CIVIL ENGINEERING 2019<div dir="ltr" style="text-align: left;" trbidi="on">
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-15650495885812129322019-07-10T12:59:00.001+05:302019-07-10T12:59:35.048+05:30ELECTRICAL ENGINEERING 2019<div dir="ltr" style="text-align: left;" trbidi="on">
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-18496777143410346452019-07-10T12:57:00.001+05:302019-07-10T12:57:30.183+05:30ESE PRE ELECTRONICS TELECOMMUNICATION ENGINEERING 2019<div dir="ltr" style="text-align: left;" trbidi="on">
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-5708950622877895782019-07-10T12:53:00.000+05:302019-07-10T12:54:08.640+05:30ESE PRE MECHANICAL ENGINEERING PAPER 2019 <div dir="ltr" style="text-align: left;" trbidi="on">
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-86145521274885408112019-07-10T12:48:00.001+05:302019-07-10T12:50:25.218+05:30ESE GENERAL STUDIES ENGINEERING APTITUDE 2019<div dir="ltr" style="text-align: left;" trbidi="on">
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-69519321225031351762016-05-01T14:05:00.002+05:302016-05-01T14:05:50.045+05:30Imporatant Limitation of Cyclotron<div dir="ltr" style="text-align: left;" trbidi="on">
<span style="font-size: large;">Limitations</span><br />
<ol style="text-align: left;">
<li> Maintaining a uniform magnetic field over a large area of the Dees is difficult.</li>
<li>At high velocities, relativistic variation of mass of the particle upsets the resonance condition.</li>
<li>At high frequencies, relativistic variation of mass of the electron is appreciable and hence electrons cannot be accelerated by cyclotron.</li>
</ol>
</div>
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-32507961343180859812016-04-30T23:57:00.001+05:302016-05-01T14:04:08.190+05:30Some Essential Parts of an AC generator<div dir="ltr" style="text-align: left;" trbidi="on">
<div style="text-align: left;">
</div>
<ul style="text-align: left;">
<li><span style="font-size: large;">Armature</span></li>
</ul>
<br />
<div style="text-align: left;">
Armature is a rectangular coil consisting of a large number of loops or turns of insulated copper wire wound over a laminated soft iron core or ring. The soft iron core not only increases the magnetic flux but also serves as a support for the coil.</div>
<div style="text-align: left;">
</div>
<ul style="text-align: left;">
<li><span style="font-size: large;">Field magnets</span></li>
</ul>
<br />
The necessary magnetic field is provided by permanent magnets in the case of low power dynamos. For high power dynamos, field is provided by electro magnet. Armature rotates between the magnetic poles such that the axis of rotation is perpendicular to the magnetic field.<br />
<br />
<ul style="text-align: left;">
<li><span style="font-size: x-large;">Slip rings</span></li>
</ul>
<br />
The ends of the armature coil are connected to two hollow metallic rings called slip rings. These rings are fixed to a shaft, to which the armature is also fixed. When the shaft rotates, the slip rings along with the armature also rotate.<br />
<br />
<ul style="text-align: left;">
<li><span style="font-size: large;">Brushes</span></li>
</ul>
<br />
There are two flexible metallic plates or carbon brushes. They provide contact with the slip rings by keeping themselves pressed against the ring. They are used to pass on the current from the armature to the external power line through the slip rings.</div>
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-85468136439784977942016-04-30T23:50:00.004+05:302016-04-30T23:58:44.859+05:30Limitation of Cyclotron <div dir="ltr" style="text-align: left;" trbidi="on">
<span style="font-size: large;">Limitations</span><br />
<ol style="text-align: left;">
<li> Maintaining a uniform magnetic field over a large area of the Dees is difficult.</li>
<li>At high velocities, relativistic variation of mass of the particle upsets the resonance condition.</li>
<li>At high frequencies, relativistic variation of mass of the electron is appreciable and hence electrons cannot be accelerated by cyclotron.</li>
</ol>
</div>
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-56895850004358155652016-04-30T23:49:00.004+05:302016-04-30T23:49:42.869+05:30Working Principle and construction of Cyclotron<div dir="ltr" style="text-align: left;" trbidi="on">
Cyclotron is a device used to accelerate charged particles to high<br />
energies. It was devised by Lawrence.<br />
<span style="font-size: large;">Principle</span><br />
Cyclotron works on the principle that a charged particle moving normal to a magnetic field experiences magnetic lorentz force due to<br />
which the particle moves in a circular path.<br />
<span style="font-size: large;">Construction</span><br />
It consists of a hollow metal cylinder divided into two sections D1 and D2<br />
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi1UTj4YKCkanM3evQNoW3huEqk5sD4EeT2cm-8guTc1xuIsvx8g9SzjLzYiT6-GYmuCGuDxsrj_rlEDR-FNPcaT4iflyhR0AMbxqqbc8BWFWjNZ8jv3J9UWsfgKsRK72QoGrxyzWw9yCut/s1600/jvjf.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi1UTj4YKCkanM3evQNoW3huEqk5sD4EeT2cm-8guTc1xuIsvx8g9SzjLzYiT6-GYmuCGuDxsrj_rlEDR-FNPcaT4iflyhR0AMbxqqbc8BWFWjNZ8jv3J9UWsfgKsRK72QoGrxyzWw9yCut/s320/jvjf.jpg" style="cursor: move;" width="320" /></a> called Dees, enclosed in an evacuated chamber. The Dees are kept separated and a source of ions is placed at the centre in the gap between the Dees. They are placed between the pole pieces of a strong electromagnet. The magnetic field acts perpendicular to the plane of the Dees. The Dees are connected to a high frequency oscillator.<br />
<br />
<span style="font-size: large;">Working</span><br />
When a positive ion of charge q and mass m is emitted from the<br />
source, it is accelerated towards the Dee having a negative potential at<br />
that instant of time. Due to the normal magnetic field, the ion<br />
experiences magnetic lorentz force and moves in a circular path. By the<br />
time the ion arrives at the gap between the Dees, the polarity of the<br />
Dees gets reversed. Hence the particle is once again accelerated and<br />
moves into the other Dee with a greater velocity along a circle of greater<br />
radius. Thus the particle moves in a spiral path of increasing radius<br />
and when it comes near the edge, it is taken out with the help of a<br />
deflector plate (D.P). The particle with high energy is now allowed to hit<br />
the target T. When the particle moves along a circle of radius r with a<br />
velocity v, the magnetic Lorentz force provides the necessary centripetal<br />
force.<br />
<span style="font-size: large;">Limitations</span><br />
<br />
<ol style="text-align: left;">
<li> Maintaining a uniform magnetic field over a large area of the Dees is difficult.</li>
<li>At high velocities, relativistic variation of mass of the particle upsets the resonance condition.</li>
<li>At high frequencies, relativistic variation of mass of the electron is appreciable and hence electrons cannot be accelerated by cyclotron.</li>
</ol>
</div>
Unknownnoreply@blogger.com1tag:blogger.com,1999:blog-2783714799164345618.post-60376822739107811592016-04-30T23:37:00.002+05:302016-05-01T14:03:03.155+05:30Magnetic field due to a current carrying circular loop<div dir="ltr" style="text-align: left;" trbidi="on">
<br />
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhNeEUMbRTUg_Z6EWhk9eT246IjbcEQtrJuMeHbLpl-FaKK6oqrFQQoZr9iIbGz8ax2kI2Ry0LIo8upYFu9NQL4i0kDCCS1CT-Dd2MieFlBMpwcMZo4sELHOSfp2jfC1iT63i5GEg8m5Ihv/s1600/mag11.gif" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" height="188" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhNeEUMbRTUg_Z6EWhk9eT246IjbcEQtrJuMeHbLpl-FaKK6oqrFQQoZr9iIbGz8ax2kI2Ry0LIo8upYFu9NQL4i0kDCCS1CT-Dd2MieFlBMpwcMZo4sELHOSfp2jfC1iT63i5GEg8m5Ihv/s320/mag11.gif" width="320" /></a>A cardboard is fixed in a horizontal plane.A circular loop<br />
of wire passes through two holes in the cardboard.Iron filings are sprinkled over the cardboard. Current is passed through the loop and the card board is gently tapped. It is observed that the iron filings arrange themselves along the resultant magnetic field. The magnetic lines of force are almost circular around the wire where it passes through the cardboard. At the centre of the loop, the line of force is almost straight and perpendicular to the plane of the circular loop.</div>
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-70836734075547767382016-04-30T23:29:00.004+05:302016-04-30T23:29:37.267+05:30Maxwells’s right hand cork screw rule<div dir="ltr" style="text-align: left;" trbidi="on">
<br />
If a right handed cork screw is rotated to advance along the direction of the current through a conductor, then the direction of rotation of the screw gives the direction of the magnetic lines of force around the conductor.</div>
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-32734388680292067042016-04-30T23:27:00.003+05:302016-04-30T23:27:45.855+05:30Magnetic field around a straight conductor carrying current<div dir="ltr" style="text-align: left;" trbidi="on">
<br />
A smooth cardboard with iron filings spread over it, is fixed in a horizontal plane with the help of a clamp.<br />
A straight wire passes through a hole made at the center<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhI9aFKr0fumoSFCJLh7jND4NSaKOfq-T7lgI25eckscEHQNKjWozM5D7FNygbyMzK5acpoNCuD4Y6i0U_utfaoJh6K81rcT58j3c74XRlIs-KEo9iadpB9HoKdYKP7lforHrTXJq8hYpBQ/s1600/gvffkfkfk.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" height="276" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhI9aFKr0fumoSFCJLh7jND4NSaKOfq-T7lgI25eckscEHQNKjWozM5D7FNygbyMzK5acpoNCuD4Y6i0U_utfaoJh6K81rcT58j3c74XRlIs-KEo9iadpB9HoKdYKP7lforHrTXJq8hYpBQ/s320/gvffkfkfk.jpg" width="320" /></a></div>
of the cardboard.<br />
A current is passed through the wire by connecting its ends to a battery.<br />
When the cardboard is gently tapped, it is found that the iron filings arrange themselves along concentric circles. This clearly shows that magnetic field is developed around a current carrying conductor.<br />
<br />
To find the direction of the magnetic field, let us imagine, a straight wire passes through the plane of the paper and perpendicular to it. When a compass needle is placed, it comes to rest in such a way that its axis is always tangential to a circular field around the conductor. <br />
When the current is inwards the direction of the magnetic field around the conductor looks clockwise.<br />
When the direction of the current is reversed, that it is outwards, the direction of the magnetic pole of the compass needle also changes showing the reversal of the direction of the magnetic field. Now, it is anticlockwise around the conductor. This proves that the direction of the magnetic field also depends on the direction of the current in the conductor. This is given by Maxwell’s rule.</div>
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-88520346794251828222016-04-29T01:17:00.002+05:302019-07-10T15:47:31.810+05:30Tsunami "the monster wave" Interesting facts and Information<div dir="ltr" style="text-align: left;" trbidi="on">
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<br />
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<br /></div>
<br />
Tsunami a Horrific things ever and ever.<br />
<div>
<br />
<div>
What happen when the wave of tsunami strike to any city of any country.</div>
<div>
It's very horrific experience non of them ever wants to have such kind of experience</div>
<div>
what ever comes under this wave yes Huge monster wave drag everything.</div>
<div>
<br /></div>
<div>
Tsunami travel with the average speed of 930 Km/hr.</div>
<div>
I call it Ocean Monster.<br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbBLHwBMo4SET9-_aVAttjQ9fjspBsbMpguBtONsO0qzWrUaGKyUEY5no0pxXZekVY-ysIGsJGiCN2hAP6Pi8-MgkoIMYP-iIhkqG4uo9DJD4SX85DnZ9LQOx1mFUoLyFG-3mV88c0Bk1A/s1600/ghii.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="372" data-original-width="769" height="154" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbBLHwBMo4SET9-_aVAttjQ9fjspBsbMpguBtONsO0qzWrUaGKyUEY5no0pxXZekVY-ysIGsJGiCN2hAP6Pi8-MgkoIMYP-iIhkqG4uo9DJD4SX85DnZ9LQOx1mFUoLyFG-3mV88c0Bk1A/s320/ghii.jpg" width="320" /></a></div>
<div class="separator" style="clear: both; text-align: center;">
<br /></div>
<br /></div>
<div>
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-10PUYId-EiVZKjcX2J8pQDzjJFmtlfc299I0yKtN7H1szszMoXq2fi6DXrvaYjJU9CqkWVo0YausvBqzQ3qwnwqAleXQjWSOITewuLRRGVVTrnahFzMHZfaIZ6BrCXozcrlxO9Kn9eNS/s1600/vjvjjv.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-10PUYId-EiVZKjcX2J8pQDzjJFmtlfc299I0yKtN7H1szszMoXq2fi6DXrvaYjJU9CqkWVo0YausvBqzQ3qwnwqAleXQjWSOITewuLRRGVVTrnahFzMHZfaIZ6BrCXozcrlxO9Kn9eNS/s320/vjvjjv.jpg" width="320" /></a></div>
</div>
<div>
Today I am going to open the some very interesting fact about tsunami</div>
<div>
From ancient time in every where ocean are the great source of Natural resource.</div>
<div>
But Beside this there is another face of Ocean when wave adopt the face of tsunami.</div>
<div>
It is basically the large version of tidal wave.</div>
<div>
How Any one can forgot year 26 dec 2004 , A black year</div>
<div>
huge Natural disaster Tsunami in the Indian ocean that take away the life of about 280 thousand people in South Asia.</div>
<div>
<br /></div>
<div>
In Japan 11 March 2011 </div>
<div>
there were a earthquake in side the water of the rate 9.3 mega thrust .</div>
<div>
it cause the death of about the 18000 peoples and injured about 6500 peoples.</div>
<div>
The height of wave was 120 ft and may reach to 1722 ft.</div>
<div>
such a huge massive wave unimaginable .</div>
<div>
<br /></div>
<div>
Now How These way are generated </div>
<div>
<ol style="text-align: left;">
<li><span style="color: #783f04;">Land slide</span></li>
<li><span style="color: #783f04;">volcanic eruption</span></li>
<li><span style="color: #783f04;">earthquake</span></li>
</ol>
</div>
<div>
when the tectonic plate of earth surface slip over one another then it releases not massive very massive amount of energy under water and it wakeup the sleeping sea.</div>
<div>
This energy travel to the upper surface of water and displaces the water surface above the</div>
<div>
sea level but due to gravity it again pull the displace water downward which make energy transmit outward in the form of very massive transverse wave.</div>
<div>
It travel about 500 mile/hr.</div>
<div>
<br /></div>
<div>
when this high velocity wave come near the bank the depth of sea decrease, due to which these wave height start increasing.</div>
<div>
it can rise up to 1750 ft above the normal sea level.</div>
<div>
and it adopt the face of Monster Wave.<br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-25258122703999545892016-04-28T15:57:00.002+05:302016-04-28T16:12:39.100+05:30Different Assumption made in the study of kenetic theory of gases<div dir="ltr" style="text-align: left;" trbidi="on">
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<li><span style="font-size: 14pt; line-height: 21.4667px;">molecule of gas moves all direction with all possible velocity during motion,the molecules colloid with one another but the collision do not effect the molecular density of gases</span></li>
<li><span style="font-size: 14pt; line-height: 21.4667px;">The motion of molecules is random</span><span style="font-size: 14pt; line-height: 21.4667px;">(the center of mass f gas remain at rest)</span></li>
<li><span style="font-size: 14pt; line-height: 21.4667px;">Between two collisiona molecules move in straight line with uniform velocity this is because no force act on the particle b/w the collision.The distance covered by molecules is called mean free path</span></li>
<li><span style="font-size: 14pt; line-height: 21.4667px;">The diamension of the molecules may be neglected as compared to the dimension of free path.</span></li>
<li><span style="font-size: 14pt; line-height: 21.4667px;">No approciable force of attraction or repulsion by molecule on in another accept during collision</span></li>
<li><span style="font-size: 14pt; line-height: 21.4667px;">Collision between melecules and with the wall of the container or perfectlly elastic and the time of impact is of neglagible duration </span><span style="font-size: 14pt; line-height: 21.4667px;">(elastic collision means no change of linear momentum and kenetic energy ) </span><span style="font-size: 14pt; line-height: 21.4667px;">elastic collision means no change of momentum but energy change</span></li>
<li><span style="font-size: 14pt; line-height: 21.4667px;">Molecules obey newtons law of motion</span></li>
</ol>
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-85034876063663907432016-04-27T23:03:00.002+05:302016-04-27T23:17:21.273+05:30Conversion of galvanometer into a voltmeter<div dir="ltr" style="text-align: left;" trbidi="on">
Voltmeter is an instrument used to measure potential difference between the two ends of a current carrying conductor.<br />
<br />
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgh-XnmMhH9_8tKYOtld89WQeDbgRpdD7gKV0P54jabbchPXHuBoQdrkwuYYmK3XwswngPg1dUb3Kb8ufjJvAwjW8Qg5ponbTsMAH5-Km20tq_QM1wvRrqB6p6dKZ5hKhGGZLb_N5lwpHuJ/s1600/ghgjg.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgh-XnmMhH9_8tKYOtld89WQeDbgRpdD7gKV0P54jabbchPXHuBoQdrkwuYYmK3XwswngPg1dUb3Kb8ufjJvAwjW8Qg5ponbTsMAH5-Km20tq_QM1wvRrqB6p6dKZ5hKhGGZLb_N5lwpHuJ/s1600/ghgjg.jpg" /></a>A galvanometer can be converted into a voltmeter by connecting a high resistance in series with it. The scale is calibrated in volt. The value of the resistance connected in series decides the range of the voltmeter. Galvanometer resistance = G<br />
The current required to produce full scale deflection in the galvanometer = Ig<br />
Range of voltmeter = V<br />
Resistance to be connected in series = R<br />
Since R is connected in series with the galvanometer, the current through the galvanometer,<br />
<br />
Ig = V/(R + G)<br />
<br />
∴R = (V/Ig )– G<br />
<br />
From the equation the resistance to be connected in series with the galvanometer is calculated.<br />
The effective resistance of the voltmeter is <br />
Rv = G + R<br />
<br />
Rv is very large, and hence a voltmeter is connected in parallel in a circuit as it draws the least current from the circuit.<br />
The resistance of the voltmeter should be very large compared to the resistance across which the voltmeter is connected to measure the potential difference. Otherwise, the voltmeter will draw a large current from the circuit and hence the current through the remaining part of the circuit decreases. In such a case the potential difference measured by the voltmeter is very much less than the actual potential difference.The error is eliminated only when the voltmeter has a high resistance.<br />
<span style="font-size: large;">An ideal voltmeter is one which has infinite resistance</span><br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-65854867084678950722016-04-27T14:58:00.000+05:302016-04-27T15:10:39.633+05:30Definition of few Important quantities Thermal Equilibrium, Specific Heat, Water equivalent <div dir="ltr" style="text-align: left;" trbidi="on">
<span style="font-size: large;">Thermal Equilibrium</span><br />
When two body is in contact and there is no transfer of heat between two body then bodies said to be in thermal equilibrium<br />
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<span style="font-size: large;">Specific Heat</span><br />
The amount of heat required to increase the temperature of unit mass of the substance by 1 degree centigrade is called specific Heat<br />
<br />
<span style="font-size: large;">Thermal capacity</span><br />
it is defined as the amount of heat energy required to increase its temperature through 1 degree centigrade.<br />
<br />
Its S.I unit is Joule/kelvin<br />
<span style="font-size: large;"><br /></span>
<span style="font-size: large;">Latent Heat</span><br />
<br />
The heat energy released or absorbed at constant temperature per unit mass for change of state is called latent Heat.<br />
<br />
Q = mL<br />
<br />
L= latent heat<br />
m= mass of substance<br />
<br />
<span style="font-size: large;">Water equivalent</span><br />
It is the quantity of water whose thermal capacity is same as the heat capacity of body . it is denoted by W<br />
<br />
W= ms<br />
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<span style="font-size: large;">Hoar Frost</span><br />
<br />
The conversion of solid into vapour state is called hoar frost<br />
<br />
Sublimation<br />
The direct conversion of solid into vapour state is called Sublimation.<br />
<br />
<span style="font-size: large;">Boiling point</span><br />
<br />
It is the temperature at which liquid get boils is called boiling point<br />
<br />
<span style="font-size: large;">Melting Point</span><br />
<br />
Conversion of solid into liquid at constant temperature is called Melting .<br />
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<br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-58370639149350034262016-04-27T14:04:00.002+05:302016-04-27T14:04:26.457+05:30Surface tension and Surface energy<div dir="ltr" style="text-align: left;" trbidi="on">
Its is the property of any type of liquid by virtue of which it try to minimize its surface area.<br />
it is measured force acting on imaginary line per unit length that is drown tangential to the free surface of liquid<br />
<br />
Mathematically given as<br />
S = F/L = (work done)/(change in area)<br />
<br />
It is scalar quantity<br />
Surface tension is the molecular phenomenon cause due to cohesive force.<br />
<br />
Surface tension of<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiSh2xp2GHCZQ06o6R_kmfjGSZkDez1mdtRmgXWIZcahbzOLPGXCa9MPRqctJ2CF-h0qg1v4XfmVVeBhb5MwjMnBRZbWHMvNmLs1N-Sm8enXCWmM42IktMrq0UU9E9JvbfoDdvt12_ZMGDe/s1600/st.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" height="123" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiSh2xp2GHCZQ06o6R_kmfjGSZkDez1mdtRmgXWIZcahbzOLPGXCa9MPRqctJ2CF-h0qg1v4XfmVVeBhb5MwjMnBRZbWHMvNmLs1N-Sm8enXCWmM42IktMrq0UU9E9JvbfoDdvt12_ZMGDe/s320/st.jpg" width="320" /></a></div>
liquid depend upon<br />
<br />
<ul style="text-align: left;">
<li>Only Nature of liquid </li>
</ul>
<br />
<br />
Surface tension of liquid is independent upon<br />
<div style="text-align: left;">
</div>
<ul style="text-align: left;">
<li>The surface area of film </li>
</ul>
<span style="font-size: large;">Molecular Range </span><br />
<div style="text-align: left;">
<br /></div>
<div style="text-align: left;">
the maximum distance upto which a molecule can exert a force of attraction or repulsion on other molecule is called molecular range</div>
<div style="text-align: left;">
<br /></div>
<div style="text-align: left;">
In solid and liquid it is of the order of 10^-9 m .</div>
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<div style="text-align: left;">
<span style="font-size: large;">Surface energy</span></div>
<div style="text-align: left;">
<br /></div>
<div style="text-align: left;">
On increasing the free surface area of liquid ,work has to be done against the force of tension .</div>
<div style="text-align: left;">
this work done stored in liquid surface as a potential energy .</div>
<div style="text-align: left;">
<br /></div>
<div style="text-align: left;">
This Additional potential energy per unit area of free surface of liquid is called surface energy.</div>
<div style="text-align: left;">
<br /></div>
<div style="text-align: left;">
surface energy = surface tension * increase in surface area .</div>
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-22886932075121769442016-04-26T19:42:00.002+05:302016-04-26T19:49:46.404+05:30Alpha, Beta and Gamma Rays Explanation<div dir="ltr" style="text-align: left;" trbidi="on">
The existence of the three distinct types of radiations, α, β and γ−rays can be easily found by the following experiment.A small amount of radium is placed at the bottom of a small hole drilled in a lead block, which is kept in an evacuated chamber<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjpbSyWjC5-byqjn9M5EywOtHAAP1uCIW2_hqtBiFVNpwx9qMy7xFUJ7pturzHxsXRRwSf2iPvtV96b2HfIZ7BuqQS8huyJAIsl75cUq8qY79LacWnsfhrYUUljvzhTm5__fGbAo7G2OMAc/s1600/fvofkf.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="139" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjpbSyWjC5-byqjn9M5EywOtHAAP1uCIW2_hqtBiFVNpwx9qMy7xFUJ7pturzHxsXRRwSf2iPvtV96b2HfIZ7BuqQS8huyJAIsl75cUq8qY79LacWnsfhrYUUljvzhTm5__fGbAo7G2OMAc/s320/fvofkf.jpg" width="320" /></a></div>
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A photographic plate is placed at a short distance above the lead block. A strong magnetic field is applied at right angles to the plane of the paper and acting inwards. Three distinct traces can be seen on the photographic plate when it is developed. The trace towards left is due to positively charged particles. They are named α -particles.The trace towards the right is due to negatively charged particles.They are named β-particles.The undeviating trace is due to neutral radiations which are called γ−rays.If an electric field is applied, the α-rays are deflected towards then negative plate,β−rays towards the positive plate and γ−rays are not deflected.</div>
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-90903173257348931262016-04-26T19:33:00.004+05:302016-04-26T19:33:36.112+05:30Spectral series of Hydrogen atom<div dir="ltr" style="text-align: left;" trbidi="on">
<br />
Spectral series of hydrogen atom<br />
<br />
Whenever an electron in a hydrogen atom jumps from higher energy level to the lower energy level, the difference in energies of the two levels is emitted as a radiation of particular wavelength. It is called a spectral line. <br />
As the wavelength of the spectral line depends upon the two orbits (energy levels) between which the transition of electron takes place, various spectral lines are obtained. The different wavelengths constitute spectral series which are the characteristic of the atoms emitting them. The following are the spectral series of hydrogen atom.<br />
<br />
<ul style="text-align: left;">
<li> Lyman series</li>
<li>Balmer series</li>
<li>Paschen series</li>
<li>Brackett series</li>
<li>Pfund series</li>
</ul>
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-2783714799164345618.post-18107046225836687802016-04-26T19:26:00.002+05:302016-04-28T16:13:23.821+05:30Breif Explanation of Rutherford Model of atom<div dir="ltr" style="text-align: left;" trbidi="on">
Rutherford suggested the following Model of the atom.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5tR6EGDRniD4jZFyz34LvPl-_odHY7FrCxIeBSxoMa1ztK5CmL6yoKy2wG3PtytmLXvUQZ2Pa-5t8M2kv_XhPvS18D9CGaKID9KB-HNeID25IMFrDp25o4ZOQSEIvGuVNng3chl0vZJrw/s1600/dn.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="214" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5tR6EGDRniD4jZFyz34LvPl-_odHY7FrCxIeBSxoMa1ztK5CmL6yoKy2wG3PtytmLXvUQZ2Pa-5t8M2kv_XhPvS18D9CGaKID9KB-HNeID25IMFrDp25o4ZOQSEIvGuVNng3chl0vZJrw/s320/dn.jpg" width="320" /></a></div>
<ol style="text-align: left;">
<li>Atom may be regarded as a sphere of diameter 10 angstrom but whole of the positive charge and almost the entire mass of the atom is concentrated in a small central core called nucleus having diameter of about 10 to the power -14 m</li>
<li> As the atom is electrically neutral, the total positive charge of the nucleus is equal to the total negative charge of the electrons in it.</li>
<li> The electrons in the atom were considered to be distributed around the nucleus in the empty space of the atom.If the electrons were at rest, they would be attracted and neutralized by the nucleus. To overcome this, Rutherford suggested that the electrons are revolving around the nucleus in circular orbits,so that the centripetal force is provided by the electrostatic force of attraction between the electron and the nucleus.</li>
</ol>
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Unknownnoreply@blogger.com0