A bar magnet is placed in a uniform magnetic field whose strength is 0.8 T. Suppose the bar magnet orient at an angle 30o with the external field experiences a torque of 0.2 N m. Calculate: (i) the magnetic moment of the magnet (ii) the work done by an applied force in moving it from most stable configuration to the most unstable configuration and also compute the work done by the applied magnetic field in this case.

A bar magnet is placed in a uniform magnetic field whose strength is

1.	A bar magnet is placed in a uniform magnetic field whose strength is 0.8 T. Suppose the bar magnet orient at an angle 30o with the external field experiences a torque of 0.2 N m. Calculate: (i) the magnetic moment of the magnet (ii) the work done by an applied force in moving it from most stable configuration to the most unstable configuration and also compute the work done by the applied magnetic field in this case.
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