Question

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

A

Increases as r increases for and for

B

Zero as r increases for , decreases as r increases for

C

Zero as r increases for , increases as r increases for

D

Decreases as r increases for and for

Medium
NEET

Solution

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Correct option is B)

Charge Q will be distributed over the surface of hollow metal sphere. 
(i) For r < R (inside)
By Gauss law,
           
(ii) For r > R (out side)

Here,

solution
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