Two charged particles repel each other with a force f. If the charge of one of the particles is quadrupled and the distance between them is doubled, then the force will be?
I know the equation for this is F= kQ1Q2/ r2. I do have an answer key for this, but I want to be able to understand why the answer is what it is, and how to do this. Can some explain this thoroughly? I don't want to just look at the equations.