CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2009

  • question_answer
    The magnetic dipole moment of a current loop is independent of

    A)  magnetic field in which it is lying

    B)  number of turns

    C)  area of the loop

    D)  current in the loop  

    Correct Answer: A

    Solution :

    Magnetic dipole moment of a current is given by                 \[M=NIA\] where \[N=\]number of turns                 \[I=\]current in a loop                  \[A=\] area of the loop From the above relation it is clear that magnetic dipole moment of a current loop is independent of the magnetic field in which it is lying.  


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