An electric circuit is formed when a conductive path is created to allow electric charge to continuously move.This continuous movement of electric charge through the conductors of a circuit is called a current, and it is often referred to in terms of "flow," just like the flow of a liquid through a hollow pipe. The force motivating charge carriers to "flow" in a circuit is called voltage.When we speak of a certain amount of voltage being present in a circuit, we are referring to the measurement of how much potential energy exists to move charge carriers from one particular point in that circuit to another particular point.