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为什么电压表要并联在电路中
更新时间: 2020-09-23 00:00:00  

1、因为串联分压,并联分流,电压表测试电压是为了测试出用电器或电阻两端的电压,即电压表两端的电压与用电器两端相等,故应选择并联的接法测试出电压;

2、电压表电阻很大,如果是串联在电路中,对于常见的电路都是当做短路处理的。

关键词: 为什么 电压 并联 电路

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