Research topic: Coulombs law

Coulomb's law , in physics, law stating that the electrostatic force between two charged bodies is proportional to the product of the amount of charge on the bodies divided by the square of the distance between them. If the bodies are oppositely charged, one positive and one negative, they are attracted toward one another; if the bodies are similarly charged, both positive or both negative, the force between them is repulsive (see charge ). Coulomb's law applies exactly only when the charged bodies are much smaller than the distance separating them and therefore can be treated approximately... Read more