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怎样用万用表测量灯泡

更新时间: 2020-10-05 00:00:00     

1、用指针表的电阻档,选10倍挡并调好零点,将两表笔接触灯泡的两个接电端;

2、若灯泡完好则指针指示一定电阻值,灯泡功率不同则电阻值也不同;

3、若指针指示无穷或0就说明灯泡已经损坏,无穷就是不通,0为短路,不可使用;

4、若使用数字表则选用电阻档的200或2000档且不需调零,无穷状态显示为1。

关键词: 怎样 测量 灯泡

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