Manipal Medical Manipal Medical Solved Paper-2000

  • question_answer
    For an isotropic medium\[B,\mu ,H\]and\[M\]are related as (where\[B,{{\mu }_{0}},H\]and M have their usual meaning in the context of magnetic material:      

    A)  \[(B-M)={{\mu }_{0}}H\]

    B)  \[M={{\mu }_{0}}(H+M)\]

    C)  \[H={{\mu }_{0}}(H+M)\]

    D)  \[B={{\mu }_{0}}(H+M)\]

    Correct Answer: D

    Solution :

     When a magnetic material is placed in a magnetic field, the magnetic material gets more magnetised. Hence, the net magnetic field is given by, \[B={{B}_{0}}+{{B}_{m}}={{\mu }_{0}}H+{{\mu }_{0}}M\] \[={{\mu }_{0}}(H+M)\]


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