JEE Main & Advanced Physics Electro Magnetic Induction Question Bank Motional EMI

  • question_answer
    A rectangular coil ABCD 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                                     [Haryana CEE 1996; MP PMT 1992, 94, 99]

    A)            The plane of the coil is horizontal

    B)            The plane of the coil makes an angle of 45° 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° with the magnetic field

    Correct Answer: A

    Solution :

               Emf = \[e={{e}_{0}}\sin \theta ;\] e will be maximum when q is 90o i.e. plane of the coil will be horizontal.


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