Alternating Current Definition

ôltər-nātĭng, ăl-
noun
An electric current that reverses direction in a circuit at regular intervals.
American Heritage
An electric current that reverses its direction periodically: abbrev. AC.
Webster's New World

An electric current in which the direction of flow of the electrons reverses periodically having an average of zero, with positive and negative values (with a frequency of 50 Hz in Europe, 60 Hz in the US, 400 Hz for airport lighting, and some others); especially such a current produced by a rotating generator or alternator.

Wiktionary
Synonyms:
  • alternating electric current
  • ac
Antonyms:

Other Word Forms of Alternating Current

Noun

Singular:
alternating current
Plural:
alternating-currents

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