A conducting sphere of radius $R$ is given a charge $Q$. The electric potential and the electric field at the centre of the sphere respectively are
A conducting sphere of radius $R$ is given a charge $Q$. The electric potential and the electric field at the centre of the sphere respectively are
- A
Zero and $\frac{Q}{{4\pi \,{ \in _0}\,{R^2}}}$
- B
$\frac{Q}{{4\pi \,{ \in _0}\,R}}$ and Zero
- C
$\frac{Q}{{4\pi \,{ \in _0}\,R}}$ and $\frac{Q}{{4\pi \,{ \in _0}\,{R^2}}}$
- D
Both are zero
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