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JEE Main & Advanced Physics Magnetism Question Bank Magnetic Equipments

  • question_answer
    The bob of a simple pendulum is replaced by a magnet. The oscillations are set along the length of the magnet. A copper coil is added so that one pole of the magnet passes in and out of the coil. The coil is short-circuited. Then which one of the following happens [KCET 1994]

    A)            Period decreases

    B)            Period does not change

    C)            Oscillations are damped

    D)            Amplitude increases

    Correct Answer: C

    Solution :

               It is due to the magnetic field produced by coil.


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