Question

At the centre of a fixed large circular coil of radius R, a much smaller circular coil of radius r is placed. The two
coils are concentric and are in the same plane. The larger coil carries a current l. The smaller coil is set to rotate
with a constant angular velocity w about an axis along their common diameter. The emf induced in the smaller coil
after a time t of its start of rotation is​

Answer 1

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