谁帮忙看一下这个五色环电阻是多大的阻值 棕红银金黑
推荐回答（3个）
再好好看看颜色，金银表示误差。怎么跑到前面来了？
而且五色环一般误差为1%，不用金银的。金表示误差5%，银表示误差10%
棕1 红2 橙3 黄4 绿5 蓝6 紫7 灰8 白9 黑0
用五条色环表示电阻的阻值大小，具体如下：
第一条色环：阻值的第一位数字；
第二条色环：阻值的第二位数字；
第三条色环：阻值的第三位数字；
第四条色环：阻值乘数的10的幂数；
第五条色环：误差（常见是棕色，误差为1%）
前四位只可能是 棕红橙黄绿蓝紫灰黑 ，最后最后一位才可能是 金或银 表示误差 你肯定是看错了
有时候五道色环却只是前四道表示阻值帕数的,后一位只是多加,意义不大,
第一种颜色棕表示1,第二种红表示2,第三位银是10的负二次方,金表示正负5%,这个阻值就是12的负二次方为0.12欧姆,或读:0欧姆12,误差是正负5%.
我认为是这样的
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