Question 1 :
<span class="wysiwyg-font-size-medium"><span class="wysiwyg-font-size-medium"><p class="wysiwyg-text-align-left">If I is the intensity of earth's magnetic field, H its &#160;horizontal component and V the vertical component, then these are related as :<br/></p>

Question 2 :
<span class="wysiwyg-font-size-medium"><span class="wysiwyg-font-size-medium"><p class="wysiwyg-text-align-left">Two points A and B equidistant from the centre of&#160;a small bar magnet. Point &#8216;A&#8217; is on the axial line&#160;and point &#8216;B&#8217; is on the equatorial line. Then the&#160;magnetic fields at point &#8216;A&#8217; and &#8216;B&#8217; are in the ratio&#160;of</p>

Question 3 :
Consider a short magnetic dipole of magnetic length $10 cm$. Its geometric length is

Question 4 :
A compass needle whose magnetic moment is $60 A m^2$ pointing geographical north at a certain place where the horizontal component of earth's magnetic field is $40 \times 10^{-6} Wb m^{-2}$ experiences a torque of $1.2 \times 10^{-3} N m.$ The declination of the place is<br><br>

Question 5 :
The magnetic lines of forces due to the horizontal component of Earth's magnetic field will be

Question 7 :
The ratio of magnetic induction of magnetic field strength in a medium gives magnetic permeability.<br>

Question 10 :
<span class="wysiwyg-font-size-medium"><span class="wysiwyg-font-size-medium"><p class="wysiwyg-text-align-left">A short bar magnet produces magnetic fields of equal induction at two points on the axial line and the other on the equatorial line. Then the ratio of the distance is&#160;<br/></p>

Question 11 :
The horizontal and vertical components of magnetic field of earth are same at some place on the surface of Earth. The magnetic dip angle at this place will be __________.

Question 12 :
<p class="wysiwyg-text-align-left"><span class="wysiwyg-font-size-medium"><span class="wysiwyg-font-size-medium">Relation between $\vec{H},\vec{I}$ <span class="wysiwyg-font-size-medium"><span class="wysiwyg-font-size-medium">and<span class="wysiwyg-font-size-large"><span class="wysiwyg-font-size-large"><span class="wysiwyg-font-size-medium"><span class="wysiwyg-font-size-medium">&#160;&#160;$\vec{B}$ is :<br/></p>

Question 13 :
Where are the field lines most concentrated around a bar magnet?

Question 14 :
The ratio of intensity of magnetisation and magnetising field is called

Question 16 :
The relation between magnetic susceptibility ${ \chi&#160; }_{ m }$ and relative permeability ${ \mu&#160; }_{ r }$&#160;is

Question 18 :
A dip needle in a plane perpendicular to magnetic meridian will be

Question 19 :
In the magnetic meridian of a certain place, the horizontal component of the earth's magnetic field is $0.26\ G$ and the angle of dip is $60^o$. The magnetic field of the earth at this location is

Question 20 :
Assertion: There are two neutral points on a horizontal board when a magnet is held vertically on the board Reason: At the neutral point the net magnetic field due to the magnetic and magnetic field of the earth is zero