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The charge given to a hollow sphere of r...

The charge given to a hollow sphere of radius `10 cm` is `3.2 xx 10^(-19)` coulomb. At a distance of `4 cm` from its centre, the electric potetnial will be

A

`28.8 xx 10^(-9)` volts

B

`288` volts

C

`2.88` volts

D

Zero

Text Solution

Verified by Experts

The correct Answer is:
A
Potential is to be determined at a distance of `4 cm` from centre of sphere i.e., inside the sphere.
`V = (kq)/(r ) = (9 xx 10^(9) xx 3.2 xx 10^(-19))/(10 xx 10^(-2)) = 28.8 xx 10^(-9)` volts
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Knowledge Check

  • The charges given to a hollow sphere of radius 10 cm is 10 n C . Electric field at a point situated at a distance of 4 cm from its centre is

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