A magnetic dipole of moment 
is free to rotate about a vertical axis passing through its centre. It is released from East-West direction. Its kinetic energy at the moment, it takes North-South position is 
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
When magnetic dipole is released from 
a torque acts on it. So, in the displacement from E-W to N-S work is done by the torque.
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