电阻色环怎样识别?
请问这个电阻多少:棕黑金金,怎样识别?
人气:227 ℃ 时间:2019-09-21 06:43:24
解答
带有四个色环的其中第一、二环分别代表阻值的前两位数;第三环代表倍率;第四环代表误差.快速识别的关键在于根据第三环的颜色把阻值确定在某一数量级范围内,例如是几点几K、还是几十几K的,再将前两环读出的数"代"进...
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