12th Class Physics Electrostatics & Capacitance Question Bank Case Based (MCQs) - Electrostatic Potential and Capacitance

  • question_answer
    E between the plates is:

    A) \[17\times {{10}^{-22}}N/C\]   

    B) \[1.5\times {{10}^{-15}}N/C\]

    C) \[1.9\times {{10}^{-10}}N/C\]   

    D) zero

    Correct Answer: C

    Solution :

    (c) \[1.9\times {{10}^{-10}}N/C\] In region II or between the plates, the electric field \[{{E}_{||}}={{E}_{A}}-{{E}_{B}}=\frac{\sigma }{2{{\varepsilon }_{0}}}+\frac{\sigma }{2{{\varepsilon }_{0}}}\] \[=\frac{\sigma \left( {{\sigma }_{A}}or\,{{\sigma }_{B}} \right)}{{{\varepsilon }_{0}}}=\frac{17.0\times {{10}^{-22}}}{8.85\times {{10}^{-12}}}\] \[E=1.9\times {{10}^{-10}}N/C\]


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