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Two thin wire rings each having radius R...

Two thin wire rings each having radius R are placed at distance d apart with their axes coinciding. The charges on the two are `+Q` and `-Q`. The potential difference between the centre so the two rings is

A

Zero

B

`(q/4piepsilon_0){(1/R)-(1/sqrt(R^2 + d^2 ))}`

C

`qR/4piepsilon_0 d^2`

D

`(q/2piepsilon_0){(1/R)-(1/sqrt(R^2 + d^2 ))}`

Text Solution

Verified by Experts

The correct Answer is:
D
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