In terms of electricity, "AC" stands for Alternating Current. This is a type of electrical current in which the flow of electric charge periodically reverses direction, switching back and forth at regular intervals or cycles, unlike direct current (DC) which flows in only one direction
. Alternating current is the form of electricity commonly supplied to homes and businesses through power outlets. It allows efficient transmission over long distances because its voltage can be easily transformed to higher or lower levels using transformers, minimizing power loss during distribution
. The typical frequency of AC power is 50 or 60 cycles per second (Hertz), depending on the country
. In summary, AC means the electric current alternates its direction periodically, which is fundamental to modern electrical power systems worldwide
