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Two concentric conducting spheres of rad...

Two concentric conducting spheres of radii `R` and `2R` are crrying charges `Q` and `-2Q`, respectively. If the charge on inner sphere is doubled, the potetial differece between the two spheres will

A

becomes two times

B

become four times

C

be halved

D

remain same

Text Solution

Verified by Experts

The correct Answer is:
A
`PD=q_("in")/(4piepsilon_0)(1/R-1/(2R)) or PD prop q_("in")`
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