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A charge q is placed at the centre of th...

A charge q is placed at the centre of the line joining two equal charges Q. The system of the three charges will be in equilibrium if q is equal to:

A

`-(Q)/(2)`

B

`-(Q)/(4)`

C

`+(Q)/(4)`

D

`(Q)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
2
`(1)/(4piepsilon_(0))(Q Q)/(l^(2))+(1)/(4piepsilon_(0))(qQ)/((1)/(2))^(2)=0`
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