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Alternating Currents (AC)

An electric current, ie the movement of electric charges (electrons or ions, or both) that changes direction cyclically following a periodic change in the polarity of the electric power source (voltage), (current frequency).

Number of cycles per second is measured in units of Hertz. (HZ)

AC technology was developed by the Serbian physicist Nikola Tesla. AC is commonly used in applications where high power is required. 

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