BHU PMT BHU PMT (Screening) Solved Paper-2009

  • question_answer
    Dimensions of self inductance are

    A)  \[[ML{{T}^{-2}}{{A}^{-3}}]\]      

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

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

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

    Correct Answer: C

    Solution :

                     SI unit of self-inductance is\[\frac{N-m}{{{A}^{2}}}\]and its dimensions are\[[M{{L}^{2}}{{T}^{-2}}{{A}^{2}}]\]. But its practical unit is henry (H).


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