A non-conducting solid sphere of radius R  is uniformly charged.  The magnitude of the  electric field due to sphere at distance ‘r’ from its centre

The electric field inside the sphere $\mathrm{r}<\mathrm{R}\mathrm{E}=\frac{1}{4{\mathrm{\pi E}}_0}\frac{\mathrm{Qq}}{{\mathrm{R}}^3}=\mathrm{r}$
Two large, thin plates are parallel and close to each other. On their inner aces, the plates have surface charges densities of opposite signs having magnitude of $17\times {10}^{-22}\mathrm{C}/{\mathrm{M}}^2$ as shown.
The intensity of electric field as a point  $\mathrm{E}=\frac{\mathrm{\sigma }}{{\mathrm{E}}_0}$