volt-ampere

名词 volt-ampere:

1. a unit of electrical power in an AC circuit equal to the power dissipated when 1 volt produces a current of 1 ampere
   同义词：var

volt-am.pere

n.（名词）
A unit of electric power equal to the product of one volt and one ampere, equivalent to one watt.
伏安法：功率单位，等于一伏特和一安培的乘积，等于一瓦特