MGIMS WARDHA MGIMS WARDHA Solved Paper-2009

  • question_answer
    What is the area of the plates of a 3F parallel plate capacitor, if the seperation between the plates is 5 mm?

    A)  \[1.694\times {{10}^{9}}{{m}^{2}}\]                       

    B)  \[4.529\times {{10}^{9}}{{m}^{2}}\]

    C)  \[9.281\times {{10}^{9}}{{m}^{2}}\]                       

    D)  \[12.981\times {{10}^{9}}{{m}^{2}}\]

    Correct Answer: A

    Solution :

                     We have, \[C=\frac{{{\varepsilon }_{0}}A}{d}\] \[\Rightarrow \] \[A=\frac{Cd}{{{\varepsilon }_{0}}}=\frac{3\times 5\times {{10}^{3}}}{8.85\times {{10}^{-12}}}=1.7\times {{10}^{9}}{{m}^{2}}\]     


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