A ball hanging from a beam is balanced against weighta placed on the other pan. Another ball is so placed that its centre is 2 cm vertically below the
A ball hanging from a beam is balanced against weighta placed on the other pan. Another ball is so placed that its centre is 2 cm vertically below the centre of the first ball. The two spheres are now charged equally and balancing weight has to be changed by 2.55 gwt to restore the balance. Calculate charge on each sphere.
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