AFMC AFMC Solved Paper-2003

  • question_answer
    A diamagnetic substance is placed in a magnetic field of a bar magnet. Then it is:

    A) repelled by magnet

    B) attracted by magnet

    C) attracted by - S -poles and repelled by N - pole

    D) attracted by N - pole and repelled by S - pole

    Correct Answer: A

    Solution :

    Key Idea: Susceptibility of diamagnetic substance is negative. Diamagnetic substances are feebly repelled by a magnet. When placed in a magnetising field they are feebly magnetised in a direction opposite to that of the field. This is due to negative   susceptibility   of   diamagnetic substance.


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