CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2004

  • question_answer
    The electric potential due to a small electric dipole at a large distance r from the centre of the dipole is proportional to:

    A)  \[r\]                                     

    B)  \[\frac{1}{r}\]

    C)  \[\frac{1}{{{r}^{5}}}\]                   

    D)         \[\frac{1}{{{r}^{3}}}\]

    E) \[\frac{1}{{{r}^{2}}}\]

    Correct Answer: E

    Solution :

    \[{{V}_{axis}}=\frac{1}{4\pi {{\varepsilon }_{0}}}\times \frac{p}{{{r}^{2}}}\] Or           \[{{V}_{axis}}\propto \frac{1}{{{r}^{2}}}\]


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