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QUINKS.html
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<!doctype html PUBLIC"-//W3C//DTD XHTML 1.0 Strict //EN" "
http://www.w3.org/TR/xhtml1/DTD/xhtml-strict.dtd">
<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml" lang="en">
<head>
<title>QUINK's TUBE</title>
<link rel="stylesheet" href="layout.css" media="screen" />
</head>
<body background="images/bg.jpg">
<div id="container">
<div id ="content">
<h1 align="center">PHYSICS VIVA QUESTION</h1><br><br><br>
<h2 align="center" font-size-adjust:200px><B><i>QUINK's TUBE</B></h2><br><br><br><br>
<p>
<b>Q.What are Para magnetic substances? </b> <br><br>
<b>A</b>.Substances that are slightly attracted to magnetic field and do not retain their magnetic properties once the field is removed.e.g.-aluminum,antimony,copper. <br><br>
<b>Q1.Why do para magnetic substances exist? </b> <br><br>
<b>A</b>.They exist due to presence of unpaired electrons and due to the realignment of electron paths caused by external magnetic field. <br><br>
<b>Q2.What is susceptibility? </b> <br><br>
<b>A</b>.Susceptibility indicates the degree of magnetization of a material in response to an applied magnetic field.It has no unit i.e it is dimensionless.<br>
<br>
where,<br>
M=degree of magnetization<br>.
H=magnetic field<br>
Xb=magnetic susceptibility<br><br>
<b>Q3.Define magnetization. </b> <br><br>
<b>A</b>. It is the measure of magnetic moment per unit volume. <br><br>
<b>Q4.Define magnetic moment. </b> <br><br>
<b>A</b>.The magnetic moment of a magnet is a quantity that determines the torque it will experience in an external magnetic field. <br><br>
<b>Q5.What is the solution used? </b> <br><br>
<b>A</b>.The solution we used is Ferric Chloride. <br><br>
<b>Q6.What would happen if we keep the tube containing para magnetic substance in Helmholtz Galvanometer? </b> <br><br>
<b>A</b>.If the tube is kept in the exact center then there will be no change . <br><br>
<b>Q7.What would happen if we replace the liquid with a para magnetic solid? </b> <br><br>
<b>A</b>.If we use a para magnetic solid in place of liquid then the solid won’t experience any physical change as the bonds formed in a solid are very strong. <br><br>
<b>Q8.Why does the liquid rise? </b> <br><br>
<b>A</b>.The level rises because when magnetic field is applied the dipoles get aligned and hence gives rise to the liquid. <br><br>
<b>Q9.What is the principle behind this experiment? </b> <br><br>
<b>A</b>.It is based on the principle of molecular currents to explain magnetic susceptibility. <br><br>
<b>Q10.What is the value of Ka? </b> <br><br>
<b>A</b>.It is zero as air is not a magnetic substance. <br><br><br><br>
<b>NOTE: </b> <br><br>
<b>Don’t forget to calculate the least count of the travelling microscope along with its unit. </b><br><br>
</p>
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