AIIMS AIIMS Solved Paper-2006

  • question_answer
    The magnetic moment has dimensions of;

    A) \[[LA]\]               

    B)       \[[{{L}^{2}}A]\]                

    C) \[[L{{T}^{-1}}A]\]            

    D)       \[[{{L}^{2}}{{T}^{-1}}A]\]

    Correct Answer: B

    Solution :

    Magnetic moment of a current carrying coil is defined as the product of current in the coil with the area of coil in vector form. That is, \[\overrightarrow{M}=I\overrightarrow{A}\] Thus, dimensions of \[M=[A][{{L}^{2}}]\] \[=[{{L}^{2}}A]\]


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