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In a uniformly charged sphere of total charge $Q$ and radius $R$, the electric field $E$ is plotted as function of distance from the centre of the sphere. The graph which would correspond to the above description will be
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Electric field due to a uniformly charged non-conducting solid sphere of radius $R$ is given as
$E= \begin{cases}\frac{1}{4 \pi \varepsilon_0} \cdot \frac{Q r}{R^3} ; & \text { for } r < R \\ \frac{1}{4 \pi \varepsilon_0} \cdot \frac{Q}{r^2} \quad ; & \text { for } r \geq R\end{cases}$
Hence, graph for electric field versus distance $r$ for a non-conducting solid sphere is given as
$E= \begin{cases}\frac{1}{4 \pi \varepsilon_0} \cdot \frac{Q r}{R^3} ; & \text { for } r < R \\ \frac{1}{4 \pi \varepsilon_0} \cdot \frac{Q}{r^2} \quad ; & \text { for } r \geq R\end{cases}$
Hence, graph for electric field versus distance $r$ for a non-conducting solid sphere is given as
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