OverviewHistoryTransmission, distribution, and domestic power supplyAC power supply frequenciesEffects at high frequenciesMathematics of AC voltagesInformation transmissionSee also
The first alternator to produce alternating current was an electric generator based on Michael Faraday''s principles constructed by the French instrument maker Hippolyte Pixii in 1832. Pixii later added a commutator to his device to produce the (then) more commonly used direct current. The earliest recorded practical application of alternating current is by Guillaume Duchenne, inventor and deve