一个五色环电阻色环从左往右依次是黄、灰、绿、红、棕,则此电阻的阻值为多少? 某一电阻五色环颜色是黄紫黑红棕则电阻值是 多少 误差是多少

\u4e00\u8272\u73af\u7535\u963b\u8272\u4f9d\u6b21\u4e3a\u7070,\u84dd,\u84dd,\u68d5,\u68d5,\u5176\u963b\u503c\u4e3a( )\u8bef\u5dee\u4e3a( )

\u4e0b\u8868\u662f\u8272\u73af\u7535\u963b\u5bf9\u7167\u8868\uff1a


\u8bfb\u53d6\u8272\u73af\u7535\u963b\u7684\u53c2\u6570\uff0c\u9996\u5148\u8981\u5224\u65ad\u8bfb\u6570\u7684\u65b9\u5411\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u8868\u793a\u516c\u5dee\u7684\u8272\u73af\u79bb\u5f00\u5176\u4ed6\u51e0\u4e2a\u8272\u73af\u8f83\u8fdc\u5e76\u4e14\u8f83\u5bbd\u4e00\u4e9b\u3002\u5224\u65ad\u597d\u65b9\u5411\u540e\uff0c\u5c31\u53ef\u4ee5\u4ece\u5de6\u5411\u53f3\u8bfb\u6570\u3002
\u4f60\u8fd9\u6ca1\u6709\u5206\u6e05\u516c\u5dee\u8272\uff0c\u65e0\u6cd5\u5e2e\u4f60\u8ba1\u7b97\uff0c\u6839\u636e\u6587\u5b57\u63d0\u793a\u548c\u6570\u636e\u8868\u81ea\u5df1\u5c31\u80fd\u7b97\u7684\u51fa\u6765\u3002





\u4f8b\u5982\uff0c\u67d04\u8272\u73af\u7535\u963b\u7684\u989c\u8272\u4ece\u5de6\u5230\u53f3\u4f9d\u6b21\u662f\u7ea2\uff082\uff09\uff0c\u7d2b\uff087\uff09\uff0c\u9ec4\uff08x10000\uff09\uff0c\u94f6\uff08\u6b63\u8d1f10%\uff09\uff0c\u5219\u6b64\u7535\u963b\u7684\u963b\u503c\u4e3a27\u03a9x10000=270000\u03a9\uff0c\u4e5f\u5c31\u662f270K\u03a9\uff0c\u516c\u5dee\u4e3a\u6b63\u8d1f10%\u3002\u3000\u3000\u518d\u5982\uff0c\u67d05\u8272\u73af\u7535\u963b\u7684\u989c\u8272\u4ece\u5de6\u5230\u53f3\u4f9d\u6b21\u662f\u7ea2\uff082\uff09\uff0c\u7eff\uff085\uff09\uff0c\u84dd\uff086\uff09\uff0c\u7ea2\uff08x100\uff09\uff0c\u68d5\uff08\u6b63\u8d1f1%\uff09\uff0c\u5219\u6b64\u7535\u963b\u7684\u963b\u503c\u4e3a256\u03a9x100=25600\u03a9\uff0c\u4e5f\u5c31\u662f25.0K\u03a9\uff0c\u516c\u5dee\u4e3a\u6b63\u8d1f1%\u3002\u6570\u5b57\u6cd5\u3000\u3000\u7531\u4e8e\u624b\u673a\u7535\u8def\u4e2d\u7684\u7535\u963b\u4e00\u822c\u6bd4\u8f83\u5c0f\uff0c\u5f88\u5c11\u88ab\u6807\u4e0a\u963b\u503c\uff0c\u5373\u4f7f\u6709\uff0c\u4e00\u822c\u4e5f\u91c7\u7528\u6570\u5b57\u6cd5\uff0c\u5373\uff1a\u3000\u3000101\u2014\u2014\u8868\u793a10*10^1\u03a9\u5373100\u6b27\u7684\u7535\u963b\uff1b 102\u2014\u2014\u8868\u793a10*10^2\u03a9\u7684\u7535\u963b\uff1b10^3\u2014\u2014\u8868\u793a10K\u03a9\u7684\u7535\u963b\uff1b 10^4\u2014\u2014\u8868\u793a100K\u03a9\u7684\u7535\u963b\u3002\u3000\u5982\u679c\u4e00\u4e2a\u7535\u963b\u4e0a\u6807\u4e3a22*10^3\uff0c\u5219\u8fd9\u4e2a\u7535\u963b\u4e3a22K\u03a9\u3002\u6570\u7801\u6cd5\u3000\u3000\u7528\u4e09\u4f4d\u6570\u5b57\u8868\u793a\u5143\u4ef6\u7684\u6807\u79f0\u503c\u3002\u4ece\u5de6\u81f3\u53f3\uff0c\u524d\u4e24\u4f4d\u8868\u793a\u6709\u6548\u6570\u4f4d\uff0c\u7b2c\u4e09\u4f4d\u8868\u793a10n\uff08n=0\uff5e8\uff09\u3002\u5f53n=9\u65f6\u4e3a\u7279\u4f8b\uff0c\u8868\u793a10^\uff08-1\uff09\u3002\u5851\u6599\u7535\u963b\u5668\u7684103\u8868\u793a10*10^3=10k\u3002\u7247\u72b6\u7535\u963b\u591a\u7528\u6570\u7801\u6cd5\u6807\u793a\uff0c\u5982512\u8868\u793a5.1k\u03a9\u3002\u7535\u5bb9\u4e0a\u6570\u7801\u6807\u793a479\u4e3a47*10^\uff08-1\uff09=4.7pF\u3002\u800c\u6807\u5fd7\u662f0\u6216000\u7684\u7535\u963b\u5668\uff0c\u8868\u793a\u662f\u8df3\u7ebf\uff0c\u963b\u503c\u4e3a0\u03a9\u3002\u6570\u7801\u6cd5\u6807\u793a\u65f6\uff0c\u7535\u963b\u5355\u4f4d\u4e3a\u6b27\u59c6\uff0c\u7535\u5bb9\u5355\u4f4d\u4e3apF\uff0c\u7535\u611f\u4e00\u822c\u4e0d\u7528\u6570\u7801\u6807\u793a\u3002

\u4e94\u8272\u73af\u7535\u963b
\u9ec4\u7d2b\u9ed1\u7ea2\u68d5

\u8fd9\u4e2a\u7535\u963b\u7684\u963b\u503c\u662f\u9ec44\u3001\u7d2b7\u3001\u9ed10\u3001\u7ea2+00\u3001\u68d51%\uff08\u8bef\u5dee\uff09\uff0c
\u8fd9\u4e2a\u7535\u963b\u662f47K\u3002470*10^2=47k \u6b27\uff0c\u8bef\u5dee\u662f\u6b63\u8d1f1% \u3002

\u8272\u73af\u770b\u7535\u963b\u503c\u6570\u4e3a\u68d51\u3001\u7ea22\u3001\u6a593\u3001\u9ec44\u3001\u7eff5\u3001\u84dd6\u3001\u7d2b7\u3001\u70708\u3001\u767d9\u3001\u9ed10\u3002\u91d1\u8272\u548c\u94f6\u8272\u662f\u8bef\u5dee\uff0c\uff08\u8bef\u5dee\u53ef\u4ee5\u4e0d\u8bb0\uff09\uff0c\u666e\u901a\u7535\u963b\u7b2c\u4e00\u73af\u548c\u7b2c\u4e8c\u73af\u53ef\u4ee5\u76f4\u63a5\u8bfb\u53d6\uff0c\u7b2c\u4e09\u73af\u4e3a\u500d\u4e57\u6570\uff0c\u4f8b\u5982\uff1a\u7ea2\u3001\u7ea2\u3001\u9ec4\u3001\u91d1\u8272\u6216\u94f6\u8272\uff0c\u8be5\u7535\u963b\u4e3a220K\uff0c\u5982\u679c\u662f\u4e94\u73af\u7535\u963b\u5c31\u4e0d\u4e00\u6837\u4e86\uff0c\u7b2c\u4e00\u73af\u548c\u7b2c\u4e8c\u73af\u7b2c\u4e09\u73af\u662f\u53ef\u4ee5\u76f4\u63a5\u8bfb\u53d6\uff0c\u7b2c\u56db\u73af\u5219\u662f\u500d\u4e57\u6570\uff0c\u4f8b\u5982\uff1a\u68d5\u3001\u7ea2\u3001\u9ed1\u3001\u6a59\u8272\u3001\u94f6\u8272\u7684\u7535\u963b\uff0c\u5b83\u7684\u7535\u963b\u963b\u4e3a120K\u3002\u6545\u4e94\u73af\u7535\u963b\u79f0\u4e3a\u7cbe\u5bc6\u7535\u963b\u3002

\u770b\u8272\u73af\u7535\u963b\u7684\u5173\u952e\u662f\uff1b
\u91d1\u8272\uff1a\u51e0\u70b9\u51e0 \u03a9
\u9ed1\u8272\uff1a\u51e0\u5341\u51e0 \u03a9
\u68d5\u8272\uff1a\u51e0\u767e\u51e0\u5341 \u03a9
\u7ea2\u8272\uff1a\u51e0\u70b9\u51e0 k\u03a9 \u6a59\u8272\uff1a\u51e0\u5341\u51e0 k\u03a9
\u9ec4\u8272\uff1a\u51e0\u767e\u51e0\u5341 k\u03a9 \u7eff\u8272\uff1a\u51e0\u70b9\u51e0 M\u03a9
\u84dd\u8272\uff1a\u51e0\u5341\u51e0 M\u03a9

\u4ece\u6570\u91cf\u7ea7\u6765\u770b\uff0c\u5728\u4f53\u4e0a\u53ef\u628a\u5b83\u4eec\u5212\u5206\u4e3a\u4e09\u4e2a\u5927\u7684\u7b49\u7ea7\uff0c\u5373\uff1a\u91d1\u3001\u9ed1\u3001\u68d5\u8272\u662f\u6b27\u59c6\u7ea7\u7684\uff1b\u7ea2\u6a59\u3001\u9ec4\u8272\u662f\u5343\u6b27\u7ea7\u7684\uff1b\u7eff\u3001\u84dd\u8272\u5219\u662f\u5146\u6b27\u7ea7\u7684\u3002
\u8fd9\u6837\u5212\u5206\u4e00\u4e0b\u662f\u4e3a\u4e86\u4fbf\u4e8e\u8bb0\u5fc6\u3002

\u5f53\u7b2c\u4e8c\u73af\u662f\u9ed1\u8272\u65f6\uff0c\u7b2c\u4e09\u73af\u989c\u8272\u6240\u4ee3\u8868\u7684\u5219\u662f\u6574\u6570\uff0c\u5373\u51e0\uff0c\u51e0\u5341\uff0c\u51e0\u767e k\u03a9\u7b49\uff0c\u8fd9\u662f\u8bfb\u6570\u65f6\u7684\u7279\u6b8a\u60c5\u51b5\uff0c\u8981\u6ce8\u610f\u3002\u4f8b\u5982\u7b2c\u4e09\u73af\u662f\u7ea2\u8272\uff0c\u5219\u5176\u963b\u503c\u5373\u662f\u6574\u51e0k\u03a9\u7684\u3002
\u8bb0\u4f4f\u7b2c\u56db\u73af\u989c\u8272\u6240\u4ee3\u8868\u7684\u8bef\u5dee\uff0c\u5373\uff1a\u91d1\u8272\u4e3a5\uff05\uff1b\u94f6\u8272\u4e3a10\uff05\uff1b\u65e0\u8272\u4e3a20\uff05\u3002

\u5728\u67d0\u4e9b\u4e0d\u597d\u533a\u5206\u7684\u60c5\u51b5\u4e0b\uff0c\u4e5f\u53ef\u4ee5\u5bf9\u6bd4\u4e24\u4e2a\u8d77\u59cb\u7aef\u7684\u8272\u5f69\uff0c\u56e0\u4e3a\u8ba1\u7b97\u7684\u8d77\u59cb\u90e8\u5206\u5373\u7b2c1\u8272\u5f69\u4e0d\u4f1a\u662f\u91d1\u3001\u94f6\u3001\u9ed13\u79cd\u989c\u8272\u3002\u5982\u679c\u9760\u8fd1\u8fb9\u7f18\u7684\u662f\u8fd93\u79cd\u8272\u5f69\uff0c\u5219\u9700\u8981\u5012\u8fc7\u6765\u8ba1\u7b97\u3002

黄、灰、绿、红、棕,此电阻的阻值为48.5千欧,



参考下图所示



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