What is the term for the electric current that flows in only one direction?

Direct Current, often abbreviated as DC, refers to an electric current that flows consistently in one direction. This means that the electrical charge flows from the negative terminal to the positive terminal without changing direction. This unidirectional flow makes DC particularly useful in many applications, including battery-powered devices, electronics, and various skin care equipment that rely on steady, consistent power for optimal performance.

In contrast, Alternating Current (AC) reverses direction periodically, which is common in household power supply systems. Reactive Current is associated with energy storage in inductors and capacitors but does not describe a type of steady current flow. Induced Current is a consequence of electromagnetic induction, typically relating to changing magnetic fields rather than describing a standard flow of current. Thus, Direct Current effectively characterizes the steady flow that is crucial across numerous fields, particularly in skin care technology.