Using Maxwell's equations in the Lorenz gauge, one can derive a wave equation relating the d'Alembertian of this quantity to the charge density.
Using Maxwell's equations in the Lorenz gauge, one can derive a wave equation relating the d'Alembertian of this quantity to the charge density. This quantity can be calculated at a point R by integrating the charge density evaluated at R-prime divided by R minus R-prime times the differential of R-prime. In electromagnetism, the Helmholtz theorem ensures that the fields can be written in terms of the gradient of this quantity plus the curl of a related (*) vector quantity. Minus the gradient of this quantity gives the electric field. For a point charge, this quantity equals K Q over R, where Q is the charge and R is the distance from the charge. For 10 points, the potential energy per unit charge equals what quantity, which equals the product of current and resistance by Ohm's Law?
Using Maxwell's equations in the Lorenz gauge, one can derive a wave equation relating the d'Alembertian of this quantity to the charge density.
electric potential [or scalar potential; or voltage] 