According to Poisson's equation, the Laplacian of this quantity is equal to the negative of (*) charge density over the permittivity.
For two regions of space, the sums of the volume and surface integrals of the constants of the region of space times this quantity for the other region of space are equal, according to Green's reciprocity theorem. The time derivative of this quantity is multiplied by one over the speed of light squared in the condition for the Lorenz gauge. According to Poisson's equation, the Laplacian of this quantity is equal to the negative of (*) charge density over the permittivity. This quantity is equal to Coulomb's k times the charge Q of a point charge over the distance from the charge. In electrostatics, the negative gradient of this quantity, usually denoted phi or V, yields the electric field. For 10 points, name this scalar whose difference at two points is determined by the magnitude of the electric field.
For two regions of space, the sums of the volume and surface integrals of the constants of the region of space times this quantity for the other region of space are equal, according to Green's reciprocity theorem.
voltage [or electric scalar potential; or electric field potential; or electrostatic potential; do not accept "electric potential energy"]