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Four point charges each +q is placed on ...

Four point charges each +q is placed on the circumference of a circle of diameter `2 d` in such a way that they form a square. The potential at the centre is

A

`0`

B

`(4kq)/d`

C

`(4d)/q`

D

`q/(4d)`

Text Solution

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The correct Answer is:
B
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