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dian neng biao kao dian a b c
Author(s): 
Pages: 43-46
Year: Issue:  3
Journal: School Journal of Mathematics

Keyword:  分时电能表电器电冰箱电视机消耗电路电功率家庭仪表常数保险丝;
Abstract: <正>电能表是家庭电路中重要的电路元件,实用性较强,所以有关电能表的知识成了近几年中招考试的热点.考点一:电能表的连接及读数方法电能表是用来测量电路中电流在某一段时间内所消耗的电能的仪表,俗称电度表,其表盘如图1所示.电能表应串联在家庭电路及需要测量用电多少的电路中.普通家用电路由进户线、电能表、总开关、保险盒、用电器等组成,其顺序如图2所示.电能表与电压表和电流表不同,它没有指针,也没有量程,它靠转盘的转动带动传动机构,累
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