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Term: Alternating Current (AC)

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An electrical current that reverses its direction at regularly occurring intervals. The voltage in AC circuits also periodically reverses because of the current changes direction. Most of the digital electronics that are built use Direct Current (DC). However, it is still important to understand some concepts revolving around AC. Moreover, AC also has some useful properties such as being able to convert voltage levels with a single component (a transformer), which is why AC was chosen as the primary means to transmit electricity over long distances.

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