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

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Increases as r increases for $r < R$ and for $r > R$

Zero as r increases for $r < R,$ decreases as r increases for $r > R$

Zero as r increases for $r < R,$ increases as r increases for $r > R$

Decreases as r increases for $r < R$ and $r > R$

answer is B.

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Detailed Solution

For a metal sphere $E_{i n} = 0$ and ${\vec{E}}_{o u t} = \frac{K q}{r^{2}} \hat{r}$

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