A hollow conducting sphere of radius $R$ has a charge $( + Q)$ on its surface. What is the electric potential within the sphere at a distance $r = \frac{R}{3}$ from its centre
A hollow conducting sphere of radius $R$ has a charge $( + Q)$ on its surface. What is the electric potential within the sphere at a distance $r = \frac{R}{3}$ from its centre
- A
Zero
- B
$\frac{1}{{4\pi {\varepsilon _0}}}\frac{Q}{r}$
- C
$\frac{1}{{4\pi {\varepsilon _0}}}\frac{Q}{R}$
- D
$\frac{1}{{4\pi {\varepsilon _0}}}\frac{Q}{{{r^2}}}$
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