Changes
Undo revision 898657 by [[Special:Contributions/DavidE|DavidE]] ([[User talk:DavidE|talk]]): Never mind. I have a better idea on how to handle this.
'''Alternating current''' (commonly abbreviated '''AC''') is 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>
