Two positive charges Q and 4Q are placed...

Two positive charges Q and 4Q are placed at points A and B respectively where B is at a distance d units to the right of A. The total electric potential due to these charges is minimum at P on the line through A and B. What is (are) the distance (s) of P from A?

`d/3` units of the right of A

`d/3` units to the left of A

`d/5` units to the right of A

d units to the left of A

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Two positive charges Q and 4Q are placed at points A and B respectively, where B is at a distance d units to the right of A. The total electric potential due to these charges is minimum at P on the through A and B. What is (are) the distance(s) of P from A?

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