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.

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