首页/ 题库 / [单选题]测量电位时,将电压表的负极与参考点相接,的答案

测量电位时,将电压表的负极与参考点相接,把正极与被测点相接,如果电压表反向偏转,说明所测点电位是( )。

单选题
2021-07-18 12:41
A、正值
B、负值
C、不一定
D、以上都不对
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正确答案
B

试题解析
B

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