PhysicsMediumHigh School (11–12)Electricity & Magnetism › Electromagnetic InductionElectricity & Magnetism › Current ElectricityElectricity & Magnetism › Magnetic Effects of CurrentBoard ExamAPA-LevelIB
Created by StemPy LabA magnet is pushed into a closed coil in s, and a charge of mC flows round the circuit. The same magnet is pushed in the same way, but in s. How much charge flows now?
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← Assertion (A): A closed coil is moved at a steady speed so that it stays wholly inside a uniform magnetic field. No current is induced in it. Reason (R): The flux through the coil does not change.A wheel of a bicycle has metal spokes, each 0.42 m long, and the wheel turns 3.0 times each second. A spoke moves in a vertical field of 4.4 × 10⁻⁵ T that is at right angles to the plane of the wheel. What is the emf between its ends? →
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