The work done in bringing a unit positive charge from infinite dist...

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The work done in bringing a unit positive charge from infinite distance to a point at distance \( x \) from a
P positive charge \( Q \) is \( W \). Then the potential \( \phi \) at that

W point is
(1) \( \frac{W Q}{x} \)
(2) \( W \)
(3) \( \frac{W}{x} \)
(4) \( W Q \)
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