PhysicsHardHigh School (11–12)Electricity & Magnetism › Electromagnetic InductionBoard ExamAPA-LevelIB
Created by StemPy LabA wheel of a bicycle has metal spokes, each m long, and the wheel turns times each second. A spoke moves in a vertical field of T that is at right angles to the plane of the wheel. What is the emf between its ends?
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← A magnet is pushed into a closed coil in 0.22 s, and a charge of 4.6 mC flows round the circuit. The same magnet is pushed in the same way, but in 0.11 s. How much charge flows now?A circular coil of 30 turns and radius 3.1 cm lies at right angles to a field that grows steadily at 0.52 T each second. The coil is closed and has a resistance of 4.6 Ω. What is the induced current? →
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