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JEE Main & Advanced Physics Electro Magnetic Induction Question Bank Graphical Questions

  • question_answer
    A rectangular loop is being pulled at a constant speed v, through a region of certain thickness d, in which a uniform magnetic field B is set up. The graph between position x of the right hand edge of the loop and the induced emf E will be

    A)                         

    B)                 

    C)                         

    D)                 

    Correct Answer: B

    Solution :

                       As x increases so \[\frac{dB}{dt}\]increases i.e. induced emf (e) is negative. When loop completely entered in the magnetic field, emf = 0            When it exit out x increases but \[\frac{dB}{dt}\]decreases i.e. e is positive.


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