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Four charges equal to - Q placed at the ...

Four charges equal to - Q placed at the four corners of a sqare and a charge q is its centre. If the system is in equilibrium, the value of q is

A

`-(Q)/(4)(1+2sqrt(2))`

B

`(Q)/(2)(1+2sqrt(2))`

C

`-(Q)/(2)(1+sqrt(2))`

D

`(Q)/(2)(1+2sqrt(2))`

Text Solution

Verified by Experts

The correct Answer is:
B
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