- 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. Also called reactive volt-amperes, idle power, wattless power, quadrature power, or volt-amperes reactive.
- synonym reactive volt-amperes
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