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Haniya
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Force of repulsion =F=0.1 N Distance between two charges =r=5cm=0.05m Both charges are identical. Force of same charges when r =2cm=0.02m F=k×(q1q2)÷r2(whole square) By using coulombs law we know that; F=k×(q1q2)÷r2(whole square) Since;it is provided