What is AC voltage?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
AC voltage (Alternating Current voltage) is an electrical voltage that periodically reverses direction, creating a wave-like pattern. Unlike DC voltage which flows in one constant direction, AC voltage alternates between positive and negative values, typically following a sine wave pattern. The frequency of this alternation is measured in Hertz (Hz) - 50 Hz in most countries, 60 Hz in North America.
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