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Question of Coulomb's law?
the mutual electrostatic force of attraction between two small spheres carrying charges +0.4 micro Coulomb and -0.8 micro coulomb in air is 0.2 N.What is the seperation between the two spheres?
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- 10 years agoFavorite Answer
F = kQ1Q2/ r^2
where F = 0.2N
k = 9 * 10^9
Q1 = 0.4 micro
Q2= -0.8micro
find r^2
and then find r
you will get your answer!!
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