Two small similar balls of mass m are hung by silk threads of length l from the same point , a small angle apart and carry similar charges q. They lose charge and draw closer quasistatically .Calculate the rate of loss of charge if the relative velocity varies as `v=k/sqrtx`where k is a constant.

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Correct Answer - `((2piepsi_0mg)/l)^(1/2)*(3k)/2`

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