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A metal ball of radius R is placed conce...

A metal ball of radius `R` is placed concentrically inside hollow metal sphere of inner radius `2R` and outer radius `3R`.The ball is given a charge `+2Q` and the hollow sphere a total charge `-Q` .The electrostatic potential energy of this system is

A

`(7Q^(2))/(24piepsilon_(0)R)`

B

`(5Q^(2))/(16piepsilon_(0)R)`

C

`(5q^(2))/(8piepsilon_(0)R)`

D

None

Text Solution

Verified by Experts

The correct Answer is:
A
`U_("system")=U_("self")+U_("int")`
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