A conducting ring of radius 1 meter is placed in an uniform magnetic field B of 0.01Telsa oscillating with frequency 100Hz with its plane at right angles to B. What will be the induced electric field
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b
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answer is B.
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Detailed Solution
In a constant magnetic field conducting ring oscillates with a frequency of 100 Hz.i.e. in time flux links with coil changes from BA to zero. Induced emf = Induced electric field along the circle, using Maxwell equation