Question

Define Alternating Current and give some examples of it.

Answer 1

Alternating current:

1. In Direct current, current flows in only one direction, In Alternating Current, the current changes direction periodically.
2. In most electric power circuits, the usual waveform of alternating current is a sine wave, whose positive half-period corresponds to the positive direction of the current and vice versa.
3. The current produced by generators or turbines is AC current, as is the current obtained from our home power sockets.
4. Most electrical appliances, such as fans, bulbs, air conditioners, and motors, operate on alternating current (AC).