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电解电容如何判断正负极

更新时间: 2020-10-26 00:00:00     

电解电容如何判断正负极方法如下:

外观辨别法:看电解电容胶管,胶管印有负极的标识的一端为负极,没有负极标识的一端为正极。引脚观察法:引脚处有带网格的一端代表负极,不带有网格的一端为正极。仪器测量法:用台式电源,把电压调小,电解电容并在电源的输出端,然后再把电容倒过来并上,观察电流表的变化,电流大的时候,证明电容的正负极刚好与电源正负相反。

关键词: 电解电容 如何 判断 负极

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