JEE Main & Advanced Physics Magnetism JEE PYQ-Magnetism

  • question_answer
    An example of a perfect diamagnet is a superconductor. This implies that when a superconductor is put in a magnetic field of intensity B, the magnetic field \[{{B}_{s}}\] inside the  superconductor will be such that: [JEE ONLINE 19-04-2014]

    A) \[{{B}_{s}}=-B\]

    B) \[{{B}_{s}}=0\]

    C) \[{{B}_{s}}=B\]

    D) \[{{B}_{s}}<B\]but\[Bs\ne 0\]

    Correct Answer: B

    Solution :

    [b] Magnetic field inside the superconductor is zero. Diamagnetic substances are repelled in external magnetic field.


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