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The point charges -2q, -2q and +q are pu...

The point charges `-2q, -2q` and `+q` are put on the vertices of an equilateral triangle of side `a`. Find the work done by some external force in increasing the separation to `2a` (in joules).

A

`(1)/(4piepsilon_0).(2q^2)/(a)`

B

negative

C

zero

D

`(1)/(4piepsilon_0).(3q^2)/(a)`

Text Solution

Verified by Experts

The correct Answer is:
C
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