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Definition of "Alternating Current" |
Electric current in which the direction of flow is reversed at frequent intervals usually 100 or 120 times per second (50 or 60 cycles per second or 50//60 Hz). / [AC] An electrical current that constantly changes amplitude and changes polarity at regular intervals, usually 100 or 120 times per second (50 or 60 cycles per second or 50//60 Hz). / A current whose instantaneous values reverses in regularly recurring intervals of time and which has alternative positive and negative values, the cycle being repeated continuously. The term is commonly used to refer to sinusoidal waveforms. / Alternating Current is a type of electrical current, in which the direction of the flow of electrons switches back and forth at regular intervals or cycles. Current flowing in power lines and normal household electricity that comes from a wall outlet is alternating current. |
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