This Website shows you what alternating currents are: http://www.play-hookey.com/ac_theory/
Alternating Current
Alexander Russell has written: 'A treatise on the theory of alternating currents' -- subject(s): Accessible book, Alternating Electric currents
AC generators, powerplants etc produce alternating currents.
Alternating current is normally produced by rotating the magnet in the coil of an induced alternating voltage. When connected to a circuit, an alternating current will flow.
Knox McIlwain has written: 'High-frequency alternating currents' -- subject(s): Alternating Electric currents 'Principles of color television'
Edith Clarke has written: 'Circuit analysis of A-C power systems' -- subject(s): Alternating Electric currents, Alternating current, Electric circuits, Electric currents, Alternating, Electric power distribution
Direct current and alternating current
A generator produces alternating current.
Dynamo
Dynamo
It is an alternating current that switches its polarity 60 times in a second. 60 Hertz is the frequency that electricity is generated in the U.S.