19 Three charges 4q Q and q are placed in a straight line of length 1 at points at distance 0 1 2 and I respectively What should

Question

19 Three charges 4q Q and q are placed in a straight line of length 1 at points at distance 0 1 2 and I respectively What should be Q in order to make the net force on q to be zero c 1 2 2 9 a 9 b 2q d 4q 90 An electron falls from the

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