电势能

在经典电磁学中，电势（用Φ，ΦE或V表示的标量量，也称为电场势或静电势）是指单位点电荷在某一点具有的电势能。

In classical electromagnetism, the electric potential (a scalar quantity denoted by Φ, ΦE or V and also called the electric field potential or the electrostatic potential) at a point is the amount of electric potential energy that a unitary point charge would have when located at that point.