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Three identical charges are placed at corners of a equilateral triangel of side l. If force between any two charges is F, the work required to double the dimensiions of triangle is

A

Zero

B

`sqrt(3) (Kq^(2))/(a^(2))`

C

`(Kq^(2))/(sqrt(3)a^(2))`

D

`3sqrt(3)(Kq^(2))/(a^(2))`

Text Solution

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The correct Answer is:
B
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