The magnetic moment of a bar | Physics | JEE Main 2024

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JEE Main 2024

04-04-2024 S2

Question

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

Select the correct option:

A

$16 \times 10^{-2} \mathrm{~J}$

B

$8 \times 10^{-2} \mathrm{~J}$

C

$4 \times 10^{-2} \mathrm{~J}$

D

Zero

✓ Correct! Well done.

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