ACPresenting information and knowledge about ac!So simple yet uncertain. Those who read will find out. acAlternating current.Another definition of ac:alternating current, such as the power from a household electrical outlet. The value is constantly changing in a sine wave.Other electronic terms related to acac current gain ac cutoff ac equivalent circuit ac ground ac load line ac resistance ac saturation acceptor access box access time accumulator acd`s ack acl act active current gain active filter active loading active region active-load resistor activity report actuator