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Charged of +6 nC and -15n C ,when separ...

Charged of `+6 nC and -15n C ` ,when separated by a certain distance , attract each other by a force F. If an additional charges of +` 9 muC ` is given to each of the two charges and separation between them is kept unchanged, the force between them will still be an attractive force of magnitude F.

Text Solution

Verified by Experts

True - intial force F = `(1)/(4pi in _0) ([+6xx 10^(-9)][-15xx10^(-9)])/(r^(2)) `
and final force F. ` =(1)/(4pi in _0) = ([+15xx10^(-9)][-6xx10^(-9)])/(r^(2)) =F.`
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Knowledge Check

  • If charge and distance between two charges are reduced to half Force between them

    A
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