As a bar magnet moves toward a 150-turn coil the magnetic, Ask an Expert

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As a bar magnet moves toward a 150-turn coil, the magnetic field (which is perpendicular to the plane of the coil) changes from 0.25 T to 0.53 T in 0.3 s. If the radius of the coil is 0.12 m and the resistance of the wire is 7.9 ohms, what is the magnitude of the induced current in the coil?

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