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At the centre of a fixed large circular ...

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 I The smaller coil is set to rotate with a constant angular velocity `omega` about an axis along their common diameter .Calculate the emf induced in the smaller coil after a time t of its start of ratation

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