alternating current(redirected from Alternating-current circuit theory)
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Related to Alternating-current circuit theory: direct current
al·ter·nat·ing current(ôl′tər-nā′tĭng, ăl′-)
n. Abbr. AC
An electric current that reverses direction in a circuit at regular intervals.
(Electrical Engineering) a continuous electric current that periodically reverses direction, usually sinusoidally. Abbreviation: AC Compare: direct current
an electric current that reverses direction at regular intervals, having a magnitude that varies continuously in a sinusoidal manner. Abbr.: AC Compare direct current.
An electric current that reverses its direction of flow at regular intervals. Because the voltage of alternating current can be easily controlled with transformers, this is the type of electricity generated by power stations. The transformers raise the voltage to make it easier to transmit over long distances, then lower the voltage for safer use in homes and buildings. Compare direct current. See Notes at current, Tesla.
A rapidly reversing electric current.
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|Noun||1.||alternating current - an electric current that reverses direction sinusoidally; "In the US most household current is AC at 60 cycles per second"|
electrical energy, electricity - energy made available by the flow of electric charge through a conductor; "they built a car that runs on electricity"