Properties of Alternating Current

Alternating current is defined as an electric current that reverses its direction at regular intervals of time.

Following are the properties of alternating current:

• Frequency is denoted by f and is defined as the number of cycles that either voltage or current has in one second. Hertz is the unit of frequency.
• Period is denoted by T and is defined as the interval of time needed for a signal to be repeated. Period is the inverse of frequency.
 $$\begin{array}{l}T=frac{1}{f}\end{array}$$
• Peak-to-peak voltage is the difference between the maximum and minimum voltage.
• RMS voltage is the amount of AC power that is produced by heating which is equivalent to the DC power.
• Alternating current is produced in a generator.