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JEE Main & Advanced Physics Magnetism Question Bank Magnetic Equipments

  • question_answer
    A magnetic needle suspended horizontally by an unspun silk fibre, oscillates in the horizontal plane because of the restoring force originating mainly from          [CPMT 1980, 89]

    A)            The torsion of the silk fibre

    B)            The force of gravity

    C)            The horizontal component of earth's magnetic field

    D)            All the above factors

    Correct Answer: C

    Solution :

              


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