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Created by StemPy LabA rod m long slides at m/s along rails in a field of T. The circuit has a resistance of . How much power must be supplied to keep the speed steady?
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← A straight vertical rod in the plane of the page moves to the right. A uniform magnetic field points into the page. Which end of the rod becomes positive?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. →
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