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Four equal charges Q are placed at the f...

Four equal charges `Q` are placed at the four corners of a square of each side is 'a'. Work done in removing a charge `-Q` from its centre to infinity is

A

zero

B

`sqrt(2)Q^(2)//4pi in_(0)a`

C

`sqrt(2)Q^(2)//pi in_(0)a`

D

`Q^(2)//2pi in_(0)a`

Text Solution

Verified by Experts

The correct Answer is:
C
Workdone = Electrostatic potential
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