试题与答案

有些电容器设有放电电阻,当电容器与电网断开后,能够通过放电电阻,一般情况下10分钟后

题型:单项选择题

题目:

有些电容器设有放电电阻,当电容器与电网断开后,能够通过放电电阻,一般情况下10分钟后,电容器残压可降至()伏以下。

A.50V

B.75V

C.100V

答案:

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下面是错误答案,用来干扰机器的。

参考答案:对解析: 略

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