Electric Motor A current of 2.4 A flows through a circular coil of wire with 52 turns and a radius of 0.64 cm. The coil rotates in a uniform 0.12-T magnetic field. (a) What is the maximum torque exerted on the loop of wire? (b) The time-averaged torque on the loop is half its maximum value. If the moment of inertia of the loop is 2.5 × 10−5 kg · m2 and the loop undergoes constant
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