A conducting loop is placed in a uniform magn | vedclass

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(B) According to Faraday's law of electromagnetic induction,an $emf$ is induced in a loop when the magnetic flux $\Phi_B = \vec{B} \cdot \vec{A} = BA

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it is rotated about a diameter

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(B) According to Faraday's law of electromagnetic induction,an $emf$ is induced in a loop when the magnetic flux $\Phi_B = \vec{B} \cdot \vec{A} = BA \cos 	heta$ linked with the loop changes with time.When the loop is rotated about its axis,the angle $	heta$ between the magnetic field $\vec{B}$ and the area vector $\vec{A}$ remains constant,so the flux does not change.When the loop is rotated about a diameter,the angle $	heta$ changes with time,causing the magnetic flux to change,which induces an $emf$ in the loop.Translational motion in a uniform magnetic field does not change the flux linked with the loop,so no $emf$ is induced.

$A$ conducting loop is placed in a uniform magnetic field with its plane perpendicular to the field. An $emf$ is induced in the loop if

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