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A small circular coil consisting of 19 turns of wire lies in a uniform magnetic field whose magnitude is 0.49 T such that the normal to the plane of the coil makes
an angle of 60° with the direction of B. The radius of the coil is 4.0 cm, and it carries a current of 3.2 A.
(a) What is the magnitude of the magnetic moment of the coil?
A m2
(b) What is the magnitude of the torque exerted on the coil?
N.m

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