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*The root mean square (RMS) value of [[Alternating Current|AC]] voltage is used to express its effective value.
*[[Alternating Current|Alternating current]] can cause electromagnetic interference (EMI), which needs to be managed in sensitive electronic equipment.
*[[Alternating Current|Alternating current]] is generated by [[alternator]]s in power plants and is used in [[Electrical Motor|motorsmotor]]s, [[Elecrical Generator|generatorsgenerator]]s, and various household appliances.
===Examples===