2. Sample Papers
  3. NEET

NEET Sample Paper NEET Sample Test Paper-19

  • question_answer
    A solid conducting sphere having a charge Q is surrounded by an uncharged concentric conducting spherical shell. The potential difference between the surface of solid sphere and shell is V. The shell is now given a charge -3Q. The new potential difference between the same surfaces will be

    A)  V                    

    B)  2V

    C)  4V                  

    D)  -IV

    Correct Answer: A

    Solution :

    The electric field between the spheres depends only on the charge of the inner sphere. So, in conformance with the relation \[dV=-\int_{{}}^{{}}{\vec{E}.\overrightarrow{dr}}\]the potential difference between the spheres depends only on the charge of the inner sphere. So, even if the charge of the shell is changed to -3Q, the sought potential difference remains same as before. Hence, the correction option is [a].


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