What characterizes direct current?

Direct current (DC) is characterized by a constant and even flow of electric charge in one direction. This type of current maintains a steady voltage level, which differentiates it from alternating current (AC), where the voltage and current direction fluctuates periodically. The stability of DC makes it suitable for applications such as battery-powered devices and electronics.

A consistent flow means that the current does not change in intensity or direction, allowing for reliable performance in various electrical systems. This smooth, continuous flow of electrons is essential for powering devices that rely on uniform energy supply. In contrast, characteristics like rapid and interrupted flow or travel in multiple directions pertain to different types of current, such as AC, and do not describe DC's unique properties.