Question: A small circular coil of 20 turns of wire lies in a uniform magnetic field of 0.5 T such that the normal to the plane

A small circular coil of 20 turns of wire lies in a uniform magnetic field of 0.5 T such that the normal to the plane of the coil makes an angle of 60o with the direction of B. The radius of the coil is 4 cm, and it carries a current of 3 A.

(a) What is the magnitude of the magnetic moment of the coil?

(b) What is the magnitude of the torque exerted on the coil?

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