Alternating Current

David Hook

The flow of current back and forth through a material or circuit. The back and forth flow happens at regular intervals. As opposed to direct current, that flows in one direction.
a graph showing the difference in waveform of alternating, direct, variable, and pulsating current
Alternating current is the form in which electric power is delivered to businesses and residences, and it is the form of electrical energy that consumers typically use when they plug kitchen appliances, televisions, fans and electric lamps into a wall socket. A common source of DC power is a battery.

The flow of current back and forth through a material or circuit. The back and forth flow happens at regular intervals.