Coulomb's Law (Electric Force) Video Lessons

Concept

# Problem: At what distance is the electrostatic force between two electrons equal to the weight of one?

###### FREE Expert Solution

Both electrons are negatively charged.

If they interact, they will repel each other with a force that can be given by Coulomb's law as:

$\overline{){{\mathbf{F}}}_{{\mathbf{E}}}{\mathbf{=}}{\mathbf{k}}{\mathbf{\left(}}\frac{{\mathbf{e}}^{\mathbf{2}}}{{\mathbf{r}}^{\mathbf{2}}}{\mathbf{\right)}}}$

An electron has weight given by:

$\overline{){\mathbf{W}}{\mathbf{=}}{\mathbf{m}}{\mathbf{g}}}$

###### Problem Details

At what distance is the electrostatic force between two electrons equal to the weight of one?