alternating electric current
Definition
Noun: * An electric current that periodically and smoothly reverses its direction of flow. This reversal happens in a sinusoidal (wave-like) pattern, changing from positive to negative and back again at a specific frequency.
Usage
- "Alternating electric current" is the technical, full term for the type of electricity used in power grids and standard wall outlets. It is often abbreviated as AC.
- It is used to describe the fundamental nature of the electrical supply, contrasting with direct current (DC).
Examples
Advanced Usage
- "AC" vs. "DC": The primary distinction in electrical engineering is between alternating current (AC) and direct current (DC), which flows in one direction only.
- Frequency and Voltage: When describing AC, its characteristics are defined by its frequency (e.g., 50 Hz or 60 Hz) and its voltage (e.g., 120V or 230V).
Variants and Related Words
- AC (noun): The universal abbreviation for "alternating current."
- Alternating current (noun): A slightly shorter, more common form of the full term.
- Sinusoidal current (noun): A technical synonym emphasizing the wave shape of the current.
Synonyms
- AC
- Sinusoidal current
Antonyms
- Direct current (DC)
- Steady current
Noun
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an electric current that reverses direction sinusoidally
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In the US most household current is AC at 60 cycles per second
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