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A sphere of radius R, is charged uniform...

A sphere of radius R, is charged uniformly with total charge Q. Then correct statement for electric field is (r = distance from centre): -

A

`(KQr)/(R^(3))`, where `r lt R`

B

`(KQ)/(r^(2))`, where `r ge R`

C

it is zero, at all points

D

(A) and (B) both

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The correct Answer is:
A
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