Question

There is a point charge q at a distance from the centre of a circle of radius r. Another point charge q is to be moved from a to b, where a and b are two points on the circle diametrically opposite to each other. How much work is done by the electrostatic force exerted by q on q?

Answer 1

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There is a point charge q at a distance from the centre of a circle of radius r. Another point charge q is to be moved from a to b, where a and b are two points on the circle diametrically opposite to each other. How much work is done by the electrostatic force exerted by q on q?


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