Answer to Question #312380 in Electric Circuits for BxJ

Question

What is the force between an electron and a proton if they are 1.0x10-8cm?

Answer 1

Force

$F=\frac{kq_1q_2}{r^2}$

$$F=\frac{9\times10^9\times1.6\times10^{-19}\times(-1.6\times10^{-19}}{(10^{-10})^2}=-2.304\times10^{-8}N$$

Attractive force