<P> Alternating current ( AC ) is an electric current which periodically reverses direction , in contrast to direct current ( DC ) which flows only in one direction . 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 and electric lamps into a wall socket . A common source of DC power is a battery cell in a flashlight . The abbreviations AC and DC are often used to mean simply alternating and direct , as when they modify current or voltage . </P>
<P> Alternating current ( AC ) is an electric current which periodically reverses direction , in contrast to direct current ( DC ) which flows only in one direction . 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 and electric lamps into a wall socket . A common source of DC power is a battery cell in a flashlight . The abbreviations AC and DC are often used to mean simply alternating and direct , as when they modify current or voltage . </P>
what is the meaning of ac dc current
what is the meaning of ac dc current
Alternating current direct current
Alternating current direct current