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The distance between two equal balls hav...

The distance between two equal balls having unlike charges is `2cm`. The radii of the balls are much less than the distance between them. The balls attract each other with a force of `36xx10^(-5)`N. After the ball have been connected by a wire and latter has been removed, the balls repel each other with a force of `20.25xx10^(-5)`N. Determine the original charges on the balls

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