Volt-ampere
SI unit of apparent power in an electrical circuit
The volt-ampere (SI symbol: V⋅A or V A; commonly written as VA) is the unit of measurement for apparent power in an electrical circuit. It is the product of the root mean square voltage (in volts) and the root mean square current (in amperes).
Nº Q550341 ★★
Uncommon · Knowledge
Volt-ampere
SI unit of apparent power in an electrical circuit
The volt-ampere (SI symbol: V⋅A or V A; commonly written as VA) is the unit of measurement for apparent power in an electrical circuit. It is the product of the root mean square voltage (in volts) and the root mean square current (in amperes).
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From Wikipedia
The volt-ampere (SI symbol: V⋅A or V A; commonly written as VA) is the unit of measurement for apparent power in an electrical circuit. It is the product of the root mean square voltage (in volts) and the root mean square current (in amperes). Volt-amperes are usually used for analyzing alternating current (AC) circuits. In direct current (DC) circuits, this product is equal to the real power, measured in watts. The volt-ampere is dimensionally equivalent to the watt: in SI units, 1 V⋅A = 1 W. VA rating is most used for generators and transformers, and other power handling equipment, where loads may be reactive (inductive or capacitive).
Text: Wikipédia, CC BY-SA 4.0. · Image: Eli Osherovich (CC BY-SA 3.0) ·
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