- The power in an AC circuit which cannot perform work. It is calculated by the following formula: P = I·V·sinθ, where P is the power in watts, I is the current in amperes, V is the voltage in volts, and sinθ is the sine of the angular phase difference between the current and the voltage. Its abbreviation is VAR. Also called reactive volt-amperes, reactive power, idle power, wattless power, or quadrature power.
- acronym VAR
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