Va是用电器的 视在功率 的单位,因为v是电压的单位,a是电流的单位,根据p=ui,所以va是功率的单位 。之所以不写为w(瓦,也是功率的单位,而且是功率的 国际单位),是因为使. Va是视在功率,w是实际功率~ !w<va ,一般w值是相应“va”值的60%~70%。 1、对于小容量更加熟悉瓦特(w)这个概念,所以小容量一般都用“w”表示容量。 2、超过1千瓦时,用“va”.
Eric Campbell extradited from West Virginia to Granville County to face
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