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JEE Main & Advanced Physics Electro Magnetic Induction Question Bank Critical Thinking

  • question_answer
    An electron moves along the line AB, which lies in the same plane as a circular loop of conducting wires as shown in the diagram. What will be the direction of current induced if any, in the loop         [MP PET 1989; AIIMS 1982, 2001; KCET 2003;  UPSEAT 2005]

    A)            No current will be induced

    B)            The current will be clockwise

    C)            The current will be anticlockwise

    D)            The current will change direction as the electron passes by

    Correct Answer: D

    Solution :

               If electron is moving from left to right, the flux linked with the loop (which is into the page) will first increase and then decrease as the electron passes by. So the induced current in the loop will be first anticlockwise and will change direction as the electron passes by.


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