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4 point charges each +q is placed on the circumference of a circle

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

Options

(a) 0
(b) 4q/d
(c) 4d/q
(d) q/4d

Correct Answer:

4q/d

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

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