DinizApp/Electronics Center

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  Alternating current (AC) is an electric current which periodically reverses direction, in contrast to direct current which flows only in one direction. The usual waveform of alternating current in most electric power circuits is a sine wave, for being the more efficient form of electric energy transmission. In certain applications, different waveforms are used, such as triangular or square waves. While the DC source is constituted by positive and negative poles, the AC is constituted by phases (and, many times, by the neutral conductor).

  Alternating current (AC) is an electric current which periodically reverses direction, in contrast to direct current which flows only in one direction. The usual waveform of alternating current in most electric power circuits is a sine wave, for being the more efficient form of electric energy transmission. In certain applications, different waveforms are used, such as triangular or square waves. While the DC source is constituted by positive and negative poles, the AC is constituted by phases (and, many times, by the neutral conductor).

  A corrente alternada (CA ou AC - do inglês alternating current), é uma corrente elétrica cujo sentido varia no tempo, ao contrário da corrente contínua cujo sentido permanece constante ao longo do tempo. A forma de onda usual em um circuito de potência CA é senoidal por ser a forma de transmissão de energia mais eficiente. Entretanto, em certas aplicações, diferentes formas de ondas são utilizadas, tais como triangular ou ondas quadradas. Enquanto a fonte de corrente contínua é constituída pelos polos positivo e negativo, a de corrente alternada é composta por fases (e, muitas vezes, pelo fio neutro)

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