force f between charges Q1 and Q2 saparated by r is 25N. it can be reduces to 5n if the separation between them is made
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F= kQ1Q2/r^2
for the force to be reduced to 5N, the separation should be multiplied by √5
for the force to be reduced to 5N, the separation should be multiplied by √5
kumaranil123:
thinks
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r×√5 apply columbs force to calculate the distance of the new force
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