	LIST I (Y vs X)
A.	Y-magnetic susceptibility X = magnetising field	I.
B.	Y = magnetic field X = distance from centre of a current carrying wire for x < a (where a = radius of wire)	II.
C.	Y = magnetic field $X =$ distance from centre of a current carrying wire for $x > a$ (where $a =$ radius of wire)	III.
D.	Y = magnetic field inside solenoid X = distance from centre	IV.

Choose the correct answer from the options given below :

(A)-(III), (B)-(IV), (C)- (I), (D)-(II)

(A)-(III), (B)-(I), (C)-(IV), (D)-(II)

(A)-(IV), (B)-(I), (C)-(III), (D)-(II)

(A)-(I), (B)-(III), (C)-(II), (D)-(IV)

Question 3.

The magnetic moment of a bar magnet is $0.5 {Am}^{2}$ . It is suspended in a uniform magnetic field of $8 \times 10^{- 2} T$ . The work done in rotating it from its most stable to most unstable position is:

4 \times 10^{- 2} J

16 \times 10^{- 2} J

8 \times 10^{- 2} J

Zero

Question 4.

Given below are two statements:

Statement I : The diamagnetic property depends on temperature.

Statement II : The induced magnetic dipole moment in a diamagnetic sample is always opposite to the magnetizing field.

In the light of given statements, choose the correct answer from the options given below.

Statement I is incorrect but Statement II is true.

Statement I is correct but Statement II is false.

Both Statement I and Statement II are False.

Both Statement I and Statement II are true.

Question 5.

The free space inside a current carrying toroid is filled with a material of susceptibility $2 \times 10^{- 2}$ . The percentage increase in the value of magnetic field inside the toroid will be

0.1%

0.2%

Question 6.

A bar magnet is released from rest along the axis of a very long vertical copper tube. After some time the magnet will

move down with almost constant speed

move down with an acceleration equal to

g

move down with an acceleration greater than

g

oscillate inside the tube

Question 7.

Given below are two statements:

Statement I : For diamagnetic substance, $- 1 \leq χ < 0$ , where $χ$ is the magnetic susceptibility.

Statement II : Diamagnetic substances when placed in an external magnetic field, tend to move from stronger to weaker part of the field.

In the light of the above statements, choose the correct answer from the options given below

Both Statement I and Statement II are true

Statement I is correct but Statement II is false

Both Statement I and Statement II are False

Statement I is incorrect but Statement II is true.

Question 8.

Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$

Assertion A : Electromagnets are made of soft iron.

Reason R : Soft iron has high permeability and low retentivity.

In the light of above, statements, choose the most appropriate answer from the options given below.

Both A and R are correct and R is the correct explanation of A

A is not correct but R is correct

A is correct but R is not correct

Both A and R are correct but R is NOT the correct explanation of A

Question 9.

A bar magnet with a magnetic moment $5.0 {Am}^{2}$ is placed in parallel position relative to a magnetic field of $0.4 T$ . The amount of required work done in turning the magnet from parallel to antiparallel position relative to the field direction is _____________.

zero

1 J

2 J

4 J

Question 10.

A solenoid of 1200 turns is wound uniformly in a single layer on a glass tube 2 m long and 0.2 m in diameter. The magnetic intensity at the center of the solenoid when a current of 2 A flows through it is :

1 A m^{- 1}

2.4 \times 10^{- 3} A m^{- 1}

1.2 \times 10^{3} A m^{- 1}

2.4 \times 10^{3} A m^{- 1}