CET Karnataka Medical CET - Karnataka Medical Solved Paper-2004

  • question_answer
    The dimensional formula for inductance is:

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

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

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

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

    Correct Answer: A

    Solution :

    emf induced in an electrical circuit \[e=L\frac{dI}{dt}\] (numerically) or \[L=e\frac{dt}{dt}\] \[=\frac{W}{Q}.\frac{dt}{dI}\left( \because e=V=\frac{W}{Q} \right)\] \[=\frac{Wdt}{It.dI}\] \[=\frac{[M{{L}^{2}}{{T}^{-2}}][T]}{[A][T][A]}=[M{{L}^{2}}{{T}^{-2}}{{A}^{-2}}]\]


You need to login to perform this action.
You will be redirected in 3 sec spinner