A hollow conducting sphere of radius R has a charge ( + Q) on its surface. electric potential within

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2. Electric Potential and Capacitance

easy

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

$\frac{1}{{4\pi {\varepsilon _0}}}\frac{Q}{{{r^2}}}$

Solution

(c) Inside a conducting body, potential is same everywhere and equals to the potential of it’s surface

Standard 12

Physics

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