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A short bar magnet of magnetic moment 0....

A short bar magnet of magnetic moment `0.4JT^(-1)` is placed in a uniform magnetic field of 0.16T the magnet is in stable equilibrium when the potential energy is

A

(-0.064)J

B

zero

C

(-0.082)J

D

0.064 J

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The correct Answer is:
A
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