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A coil cosists of 400 turns of wire. Eac...

A coil cosists of 400 turns of wire. Each turn is a square of side d= 20 cm. A uniform magnetic field directed perpendicular to the plane of the coil is turned on. If the field changes linearly from 0 to 0.50 T in 0.8 s, what is the magnitude of induced emf in the coil while is the field is changing?

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