If electrical force between two charges is 200N and we increase 10 charge on one of the charges and decrease 10 charge on the

Question

If electrical force between two charges is 200N and we increase 10 charge on one of the charges and decrease 10 charge on the other then the electrical force between them for the same distance becomes 1 200 N 2 202 N 3 198 N 4 199 N

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