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JEE Main & Advanced Physics Magnetism Question Bank Magnetic Materials

  • question_answer
    When a piece of a ferromagnetic substance is put in a uniform magnetic field, the flux density inside it is four times the flux density away from the piece. The magnetic permeability of the material is                          [UPSEAT 2004]

    A)            1    

    B)            2

    C)            3    

    D)            4

    Correct Answer: D

    Solution :

               \[{{\mu }_{r}}=\frac{B}{{{B}_{0}}}=4\]


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