Faraday's law, Lenz's law, self/mutual inductance, AC generator, eddy currents.
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Q1 · Electromagnetic Induction · MEDIUM
A coil of 200 turns and area 50 cm² is placed in a magnetic field which changes from 0.2 T to 0.8 T in 0.4 s. What is the magnitude of the induced emf if the field is perpendicular to the plane of the coil?