KnowraPoint chargeLinked fromLinked fromThe 10 pages that link to Point charge, each with the reason it gives.All 10Broader topic 5Related 5Electric fieldBroader topic: Its field provides the simplest exact example of the definition.Coulomb potentialBroader topic: The inverse-distance expression applies directly when both interacting objects can be treated as point charges.Equipotential surfaceBroader topic: Its equipotential surfaces are concentric spheres in three dimensions.SourceBroader topic: Positive point charges act as sources of the electric field.EquipotentialBroader topic: Its equipotentials are concentric spheres, or circles in a planar diagram.