Q 1376780676.     A hollow conducting sphere of radius `R` has a charge `+Q` as its outer surface. Inside the sphere at `r= frac{R}{4}` from its centre the value of electric potential will be :

A

zero

B

`frac{1}{4 pi in _0}frac{Q}{r}`

C

`frac{1}{4 pi in _0}frac{Q}{r^2}`

D

`frac{1}{4 pi in _0}frac{Q}{R}`

HINT

Theory based.

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