Electric circuits are classified in several ways. A direct-current circuit carries current that flows only in one direction. An alternating-current circuit carries current that pulsates back and forth many times each second, as in most household circuits.
An electronic circuit can usually be categorized as an analog circuit, a digital circuit, or a mixed-signal circuit (a combination of analog circuits and digital circuits).
What is a simple electronic circuit? See many examples of electronic circuits for beginners and hobbyists to build quickly and inexpensively.
The article explains the fundamental components of an electrical circuit, including the source, load, and conductors, and covers key concepts such as voltage, current, resistance, and the differences between AC and DC currents.