2. Questions Bank
  3. JEE Main & Advanced
  4. Physics
  5. Electrostatics & Capacitance

JEE Main & Advanced Physics Electrostatics & Capacitance Question Bank Electric Field and Potential

  • question_answer
    Electric field strength due to a point charge of \[5\mu C\] at a distance of 80 cm from the charge is           [CBSE PMT 2000]

    A)            \[8\times {{10}^{4}}\]N/C

    B)                                      \[7\times {{10}^{4}}\]N/C

    C)            \[5\times {{10}^{4}}\]N/C

    D)                                      \[4\times {{10}^{4}}\]N/C

    Correct Answer: B

    Solution :

                 \[E=9\times {{10}^{9}}.\frac{Q}{{{r}^{2}}}\]\[=9\times {{10}^{9}}\times \frac{5\times {{10}^{-6}}}{{{(0.8)}^{2}}}=7\times {{10}^{4}}\,N/C\]


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