Coulomb's Law states that the potential energy of two charged particles is directly proportional to the product of their charges and inversely proportional to the distance between them.
Work Step by Step
For like charges, the potential energy is positive and decreases as the particles get farther apart. For opposite charges, the potential energy is negative and becomes more negative as the particles get closer together. The magnitude of the interaction between the charged particles increases as the charges of the particles increases.