law of attraction and repulsion between electrostatic charges
Coulomb's law Coulomb's law, or Coulomb's inverse-square law, is a law of physics that describes force interacting between static electrically charged particles. In its scalar form, the law is:
Fundamental interaction In physics, the fundamental interactions, also known as fundamental forces, are the interactions that do not appear to be reducible to more basic interactions. There are four fundamental interactions known to exist: the gravitational and electromagnetic interactions, which produce significant long-range forces whose effects can be seen directly in everyday life, and the strong and weak interactions, which produce forces at minuscule, subatomic distances and govern nuclear interactions. Some scientists[1][2][3] speculate that a fifth force might exist, but this is not widely accepted nor proven.