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JIPMER Jipmer Medical Solved Paper-1996

  • question_answer
    \[\text{M}{{\text{L}}^{\text{2}}}{{\text{T}}^{\text{3}}}{{\text{I}}^{\text{-2}}}\] is the dimension of:

    A)  resistivity                           

    B)  resistance         

    C)         potential difference     

    D)  electric field

    Correct Answer: B

    Solution :

    We know that \[M{{L}^{2}}{{T}^{-3}}\] is the dimension of power, hence the given quantity is \[=\frac{\text{power}}{{{\text{(current)}}^{\text{2}}}}\] We also know that \[{{i}^{2}}R=power\] So,          \[R=\frac{\text{power}}{{{\text{(current)}}^{\text{2}}}}\] Therefore, \[M{{L}^{2}}{{T}^{-3}}{{I}^{-2}}\] is the dimension of resistance.


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