What is Alternating Current (AC)

What is Alternating Current (AC)

An electrical potential, the magnitude and direction of which change over time, is termed an AC voltage. The current produced by such a voltage in a load is termed alternating current (AC).

Sinusoidal alternating quantities:

In communications engineering and information technology, various shapes of alternating voltage (such as the square wave) can prove useful, electrical energy technology is dominated by sinusoidal alternating voltage and current, usually produced by generators and used for transmitting energy via high-tension transmission lines. Such voltages and currents follow a sine-wave curve as shown in the animation above.

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