Answer to Question #282757 in Physics for gggg

Question #282757

- Two small silver spheres each with a mass of 100gm are separated by 1 m. Calculate the number of electrons that must be transferred from one to the other to produce an attractive force of 104 N between the spheres.


1
Expert's answer
2021-12-27T08:01:24-0500

Apply Coulomb's law:


F=14πϵ0(ne)2r2, n=2reπϵ0F=6.581015F=\frac1{4\pi\epsilon_0}\frac{(ne)^2}{r^2},\\\space\\ n=\frac {2r}e\sqrt{\pi\epsilon_0F}=6.58·10^{15}

assuming the force is 104 N, not 104 N.


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