Be on is the electric potential at the beginning (v.) is the voltage at the end (v.) is used in the sliding charge (J) is the charge movement (Cooper. Lomb) .
When is an electric potential at the beginning (Volt) electric potential is! last point (v), is used to move the charge (j) is the charge that the Union (khu lom) .
when will be the starting point is Electric Potential (v)! Electric Potential at the point is finally (v) is the work of the slide discharge (Joule) is a completely mobile (Cooper, ลอมบ์)