Electrostatics

Question: A thin spherical conducting shell of radius $R$ has a charge q. Another charge Q is placed at the centre of the shell. The electrostatic potential at a point p a distance $\frac{R}{2}$ from the centre of the shell is



1) $\frac{{(q + Q)}}{{4\pi {\varepsilon _0}}}\frac{2}{R}$
2) $\frac{{2Q}}{{4\pi {\varepsilon _0}R}}$
3) $\frac{{2Q}}{{4\pi {\varepsilon _0}R}} - \frac{{2q}}{{4\pi {\varepsilon _0}R}}$
4) $\frac{{2Q}}{{4\pi {\varepsilon _0}R}} + \frac{q}{{4\pi {\varepsilon _0}R}}$
Solution: Explanation: Explanation
electric-field-potential

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