RAJASTHAN ­ PET Rajasthan PET Solved Paper-2007

  • question_answer
    If mass [M], length [L], time [T] and current [A] as fundamental units, the dimensional formula for permeability will be

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

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

    C)  \[[ML{{T}^{-2}}{{A}^{-2}}]\]    

    D)  \[[ML{{T}^{-1}}{{A}^{-1}}]\]

    Correct Answer: C

    Solution :

     Magnetic field \[B={{\mu }_{0}}ni\] \[{{\mu }_{0}}=\frac{B}{ni}=\frac{[ML{{T}^{-2}}]/[AL]}{[{{L}^{-1}}A]}\] \[[ML{{T}^{-2}}{{A}^{-2}}]\]


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