A hollow metal sphere of radius $R$ is uniformly charged. The electric field due to the sphere at a

Question

A hollow metal sphere of radius $R$ is uniformly charged. The electric field due to the sphere at a distance $r$ from the centre

Professor PC Thomas Classes · Answer

In a uniformly charged hollow conducting sphere,
(i) For $r<R, \vec{E}=0$
(ii) For $r>R, \vec{E}=\frac{1}{4 \pi \varepsilon_{0}} \frac{Q}{\left|\vec{r}^{2}\right|} \hat{r} ; \vec{E}$ decreases