这个色环电阻是多少？红，黑，金，宗。 色环电阻色为红黑红金阻值多大怎么算？
\u8272\u73af\u7535\u963b\u7ea2\uff0c\u9ed1\uff0c\u94f6\uff0c\u91d1\uff0c\u767d\u963b\u503c\u662f\u591a\u5c11\u54ea\u4e2a\u9ad8\u624b\u5e2e\u6211\uff081\uff09\u60a8\u7684\u6392\u5217\u6709\u95ee\u9898\uff0c\u4e00\u822c\u6700\u540e\u4e00\u73af\u4e3a\u91d1\u6216\u94f6\uff0c\u8868\u793a\u8bef\u5dee\uff1b\u7ea22\u3001\u9ed10\u3001\u767d9
\uff082\uff09\u9ed1\uff0c\u68d5\uff0c\u7ea2\uff0c\u6a59\uff0c\u9ec4\uff0c\u7eff\uff0c\u84dd\uff0c\u7d2b\uff0c\u7070\uff0c\u767d\uff0c \u91d1\uff0c \u94f6
0\uff0c 1\uff0c .2\uff0c .3\uff0c 4\uff0c .5\uff0c 6\uff0c .7\uff0c 8\uff0c .9\uff0c.\u00b1 5%\uff0c\u00b110%
\u5012\u6570\u7b2c\u4e8c\u73af\uff0c\u8868\u793a\u96f6\u7684\u4e2a\u6570\u3002
\u6700\u540e\u4e00\u4f4d\uff0c\u8868\u793a\u8bef\u5dee\u3002
\u8fd9\u4e2a\u89c4\u5f8b\u6709\u4e00\u4e2a\u5de7\u8bb0\u7684\u53e3\u8bc0\uff1a\u68d5\u4e00\u7ea2\u4e8c\u6a59\u662f\u4e09\uff0c\u56db\u9ec4\u4e94\u7eff\u516d\u4e3a\u84dd\uff0c\u4e03\u7d2b\u516b\u7070\u4e5d\u5bf9\u767d\uff0c\u9ed1\u662f\u96f6\uff0c\u91d1\u4e94\u94f6\u5341\u8868\u8bef\u5dee.
\u4f8b\u5982\uff0c\u7ea2\uff0c\u9ec4\uff0c\u68d5\uff0c\u91d1 \u8868\u793a240\u6b27\uff0c\u8bef\u5dee\u4e3a\u00b1 5%\u3002
\u7535\u963b\u7684\u989c\u8272\u5206\u4e3a\uff1a\u9ed1\uff080\uff09\u3001\u68d5\uff081\uff09\u3001\u7ea2\uff082\uff09\u3001\u6a59\uff083\uff09\u3001\u9ec4\uff084\uff09\u3001\u7eff\uff085\uff09\u3001\u84dd\uff086\uff09\u3001\u7d2b\uff087\uff09\u3001\u7070\uff088\uff09\u3001\u767d\uff089\uff09\u3001\u91d1\uff085%\uff09\u3001 \u94f6\uff0810%\uff09\u3002
\u4e00\u822c\u91d1\u548c\u94f6\u90fd\u662f\u5728\u6700\u540e\uff0c\u662f\u7535\u963b\u7684\u6b63\u5e38\u6ce2\u52a8\u8303\u56f4\uff0c\u91d1\u8868\u793a\u5b9e\u9645\u7535\u963b\u503c\u53ef\u4ee5\u5728\u6b63\u8d1f5%\u4ee5\u5185\u662f\u6b63\u5e38\u7684\uff0c\u94f6\u5c31\u662f\u7535\u963b\u503c\u53ef\u4ee5\u572810%\u5185\u6ce2\u52a8\u662f\u6b63\u5e38\u7684\u3002
\u4ee5\u56db\u8272\u73af\u7535\u963b\uff1a\u7ea2\u9ed1\u7ea2\u91d1\uff0c\u4e3a\u4f8b\u3002
\u5c31\u8868\u793a\uff1a\u7ea2\u548c\u9ed1\u7ec4\u6210\u4e00\u4e2a\u657020\uff1b\u7b2c\u4e09\u4e2a\u6570\u662f10\u7684\u51e0\u6b21\u65b9\uff0c\u5728\u8fd9\u91cc\u4e3a\u7ea2\uff0c\u5c31\u8868\u793a\u662f10\u7684\u5e73\u65b9\uff1b\u7136\u540e\u91d1\u8868\u793a\u7535\u963b\u503c\u7684\u6b63\u5e38\u6ce2\u52a8\u8303\u56f4\u5728\u6b63\u8d1f5%\u5185\u662f\u6b63\u5e38\u7684\u3002
\u6570\u5b57\u5f0f\u5c31\u662f\uff1a20*10^2=2000\u6b27\uff0c\u5b9e\u9645\u7535\u963b\u503c\u53ef\u4ee5\u57282000\u76845%\u5185\u6b63\u8d1f\u6ce2\u52a8\uff0c\u4e5f\u5c31\u662f1900\u52302100\u5185\u7684\u5b9e\u9645\u7535\u963b\u503c\u90fd\u662f\u53ef\u4ee5\u7684\u3002
红为2，黑为0，金为×0.1，粽为误差为1%。20×0.1=2欧。
红2黑0金O·1即2欧。
参考上图，阻值是2Ω
绛旓細绾 绾 閲=22脳1^-1=2.2惟 閲=卤5
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