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You have a wire of length L = 1.9 m for making a square coil of a dc motor. The current in the coil is I = 1.6 A, and the magnetic field of the motor has a magnitude of B = 0.38 T. Find the maximum torque exerted on the coil when the wire is used to make

(a) a single-turn square coil and

(b) a two-turn square coil.

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