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A short bar magnet placed with its axis ...

A short bar magnet placed with its axis at `30^@` with a uniform external magnetic field of 0.16T experiences a torque of magnitude 0.032Nm. If the bar magnet were free to rotate, its P.E when it is in stable and unstable equilibrium are respectively.

A

A) `-0.064J, +0.064J `

B

B) `-0.032J, +0.032J`

C

C) `+0.064J, -0.064 J`

D

D) `+0.032J , -0.032J`

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AAKASH SERIES-APPENDICES ( REVISION EXERCISE )-REVISION EXERCISE (MAGNETISM AND MATTER )
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