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(B) According to Faraday's law of electromagnetic induction,an e.m.f. is induced in a coil only when there is a change in the magnetic flux linked wit

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No current will be induced in a coil

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(B) According to Faraday's law of electromagnetic induction,an e.m.f. is induced in a coil only when there is a change in the magnetic flux linked with the coil.When a cylindrical bar magnet is rotated about its own axis,the magnetic field lines remain symmetric with respect to the axis of rotation.Consequently,the magnetic flux passing through the circular coil does not change over time.Since the magnetic flux $\Phi_B$ remains constant,the induced e.m.f. $\varepsilon = -\frac{d\Phi_B}{dt} = 0$.Therefore,no current will be induced in the coil.

$A$ cylindrical bar magnet is kept along the axis of a circular coil. If the magnet is rotated about its axis,then

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