What type of electrical current always moves in one direction?

Direct current is the type of electrical current that always flows in one direction. This means that the electric charge does not change direction as it moves through a circuit. Direct current is commonly used in many applications, including batteries, solar panels, and electronic devices, as it provides a steady and consistent voltage.

In contrast, alternating current (AC) periodically reverses its direction, which is the standard form of electricity supplied to homes and businesses. Static current refers to the build-up of electrical charge that can occur in non-conductive materials, while surge current is a temporary spike in electrical current that can happen during certain events, such as lightning storms or when large appliances are turned on. Understanding these differences highlights why direct current is characterized by its unidirectional flow.