A rectangular coil \( A B C D \) is rotated anticlockwise with a uniform angular velocity about ...

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A rectangular coil \( A B C D \) is rotated anticlockwise with a uniform angular velocity about the axis shown in diagram below. The axis of rotation of the coil as well as the magnetic field \( B \) are horizontal. The induced e.m.f. in the coil would be maximum when
(A) The olane of the coil is horizontal
(B) The plane of the coil makes an angle of \( 45^{\circ} \) with the magnetic field
(C) The plane of the coil is at right angles to the magnetic field
(D) The plane of the coil makes an angle of \( 30^{\circ} \) with the magnetic field
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