Question

What happens in alternating current?

Answer 1

1. alternating current, abbreviation AC, the flow of electric charge that periodically reverses.
2. It starts, say, from zero, grows to a maximum, decreases to zero, reverses, reaches a maximum in the opposite direction, returns again to the original value, and repeats this cycle indefinitely.
3. The interval of time between the attainment of a definite value on two successive cycles is called the period, the number of cycles or periods per second is the frequency, and the maximum value in either direction is the amplitude of the alternating current.
   
4. Alternating current (AC) is a current which keeps on changing its direction with respect to time.
5. Alternating current can be produced or generated by using devices that are known as alternators.
6. The rate of change of the direction is represented as frequency, represented by the symbol $\mathrm{f}$, and it is measured in Hertz.