Two equally charged small metal balls placed at a fixed distance experience a force F . A similar uncharged metal ball after touching one of them is placed at the middle point between the two balls. T

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Two equally charged small metal balls placed at a fixed distance experience a force F . A similar uncharged metal ball after touching one of them is placed at the middle point between the two balls. The force experienced by this ball is

TestHub · Accepted Answer

Initially, F A B = 1 4 π ε 0 . q . q r 2 = 1 4 π ε 0 . q 2 r 2 Finally, force on C F C = F C B - F C A = 1 4 π ε 0 . q 2 q r 2 2 - 1 4​πε​​​ 0 . q 2 q 2 r 2 2 = 1 4 π​ ε​ 0 . q 2 r 2 So F C = F A B = F

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