Electrostatics

Question: A hollow metallic sphere of radius R is given a charge Q. Then the potential at the centre is

1) Zero

2) $\frac{1}{{4\pi {\varepsilon _0}}}.\frac{Q}{R}$

3) $\frac{1}{{4\pi {\varepsilon _0}}}.\frac{{2Q}}{R}$

4) $\frac{1}{{4\pi {\varepsilon _0}}}.\frac{Q}{{2R}}$

Solution:

Explanation: Explanation

electric-field-potential

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