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New page: A type of electrical current, the direction of which is reversed at regular intervals or cycles. In the United States, the standard is 120 reversals or 60 cycles per second. Electricit...
A type of [[electrical current]], the direction of which is reversed at regular intervals or cycles. In the United States, the standard is 120 reversals or 60 cycles per second. Electricity transmission networks use AC because [[voltage]] can be controlled with relative ease.<ref>http://www1.eere.energy.gov/solar/solar_glossary.html</ref>
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