If the potential at the centre of a uniformly charged hollow sphere of radius $R$ is $V$ then electric field at a distance $r$ from the centre of the sphere is $(r > R)$
A$\frac{{VR}}{{{r^2}}}$
B$\frac{{Vr}}{{{R^2}}}$
C$\frac{{VR}}{r}$
D$\frac{{VR}}{{{R^2} + {r^2}}}$
Medium
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A$\frac{{VR}}{{{r^2}}}$
a $\boxed{{\text{V}} = \frac{{{\text{kQ}}}}{{\text{R}}}\,}\, \Rightarrow {\text{E}} = \frac{{{\text{kQ}}}}{{{{\text{r}}^2}}}$
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