电阻颜色辩电阻率
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1M\u03a9=1000K\u03a9 \uff0c 1K\u03a9=1000\u03a9\u3002
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10^1\u2014\u2014\u8868\u793a10\u03a9\u7684\u7535\u963b\uff1b 10^2\u2014\u2014\u8868\u793a100\u03a9\u7684\u7535\u963b\uff1b 10^3\u2014\u2014\u8868\u793a1K\u03a9\u7684\u7535\u963b\uff1b 10^4\u2014\u2014\u8868\u793a10K\u03a9\u7684\u7535\u963b\uff1b 10^6\u2014\u2014\u8868\u793a1M\u03a9\u7684\u7535\u963b\uff1b 10^7\u2014\u2014\u8868\u793a10M\u03a9\u7684\u7535\u963b\u3002
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\u4f5c\u7528:
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\u7535\u963b\u7387
(1)\u5b9a\u4e49\u6216\u89e3\u91ca
\u7535\u963b\u7387\u662f\u7528\u6765\u8868\u793a\u5404\u79cd\u7269\u8d28\u7535\u963b\u7279\u6027\u7684\u7269\u7406\u91cf\u3002\u67d0\u79cd\u6750\u6599\u5236\u6210\u7684\u957f1\u7c73\u3001\u6a2a\u622a\u9762\u79ef\u662f1\u5e73\u65b9\u6beb\u7c73\u7684\u5bfc\u7ebf\u7684\u7535\u963b\uff0c\u53eb\u505a\u8fd9\u79cd\u6750\u6599\u7684\u7535\u963b\u7387\u3002
(2)\u5355\u4f4d
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(3)\u8bf4\u660e
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1OO W\u7535\u706f\u706f\u4e1d\u7684\u7535\u963b\uff0c\u901a\u7535\u65f6\u662f484\u6b27\u59c6\uff0c\u672a\u901a\u7535\u65f6\u53ea\u670940\u6b27\u59c6\u5de6\u53f3\u3002
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\u4e0b\u8868\u662f\u51e0\u79cd\u91d1\u5c5e\u5bfc\u4f53\u572820\u2103\u65f6\u7684\u7535\u963b\u7387.
\u6750\u6599\u7535\u963b\u7387(\u03a9 m)
(1)\u94f6 1.6 \u00d7 10-8 (5)\u94c2 1.0 \u00d7 10-7 (9)\u5eb7\u94dc 5.0 \u00d7 10-7
(2)\u94dc 1.7 \u00d7 10-8 (6) \u94c1 1.0 \u00d7 10-7 (10)\u954d\u94ec\u5408\u91d1 1.0 \u00d7 10-6
(3)\u94dd 2.9 \u00d7 10-8 (7)\u6c5e 9.6 \u00d7 10-7 (11)\u94c1\u94ec\u94dd\u5408\u91d11.4 \u00d7 10-6
(4)\u94a8 5.3 \u00d7 10-8 (8)\u9530\u94dc 4.4 \u00d7 10-7 (12) \u94dd\u954d\u94c1\u5408\u91d11.6 \u00d7 10-6
(13)\u77f3\u58a8(8\uff5e13)\u00d710-6
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\u94dc,\u787c\u7b49\u7684\u7535\u963b\u7387\u6bd4\u7edd\u7f18\u4f53\u5c0f\u800c\u6bd4\u91d1\u5c5e\u5927,\u6211\u4eec\u628a\u8fd9\u7c7b\u6750\u6599\u53eb\u505a\u534a\u5bfc\u4f53
(semiconductors).
\u603b\u7ed3:\u5e38\u6001\u4e0b(\u7531\u8868\u53ef\u77e5)\u5bfc\u7535\u6027\u80fd\u6700\u597d\u7684\u4f9d\u6b21\u662f\u94f6,\u94dc,\u94dd,\u8fd9\u4e09\u79cd\u6750\u6599\u662f\u6700\u5e38\u7528\u7684,\u5e38\u88ab\u7528\u6765\u4f5c\u4e3a\u5bfc\u7ebf\u7b49,\u5176\u4e2d\u94dc\u7528\u7684\u6700\u4e3a\u5e7f,\u51e0\u4e4e\u73b0\u5728\u7684\u5bfc\u7ebf\u90fd\u662f\u94dc\u7684(\u7cbe\u5bc6\u4eea\u5668,\u7279\u6b8a\u573a\u5408\u9664\u5916)\u94dd\u7ebf\u7531\u4e8e\u5316\u5b66\u6027\u8d28\u4e0d\u7a33\u5b9a\u5bb9\u6613\u6c27\u5316\u5df2\u88ab\u6dd8\u6c70.\u94f6\u5bfc\u7535\u6027\u80fd\u6700\u597d\u4f46\u7531\u4e8e\u6210\u672c\u9ad8\u5f88\u5c11\u88ab\u91c7\u7528,\u53ea\u6709\u5728\u9ad8\u8981\u6c42\u573a\u5408\u624d\u88ab\u4f7f\u7528,\u5982\u7cbe\u5bc6\u4eea\u5668,\u9ad8\u9891\u9707\u8361\u5668,\u822a\u5929\u7b49...\u987a\u4fbf\u8bf4\u4e0b\u91d1,\u5728\u67d0\u4e9b\u573a\u5408\u4eea\u5668\u4e0a\u89e6\u70b9\u4e5f\u6709\u7528\u91d1\u7684,\u90a3\u662f\u56e0\u4e3a\u91d1\u7684\u5316\u5b66\u6027\u8d28\u7a33\u5b9a\u6545\u91c7\u7528,\u5e76\u4e0d\u662f\u56e0\u4e3a\u5176\u7535\u963b\u7387\u5c0f\u6240\u81f3.
\u7535\u963b\u7387\u7684\u8ba1\u7b97\u8868\u8fbe\u5f0f
\u03c1=RS/L
\u03c1\u5c31\u662f\u7535\u963b\u7387\uff0cL\u4e3a\u6750\u6599\u7684\u957f\u5ea6\uff0c S\u4e3a\u9762\u79ef\uff0cR\u662f\u7535\u963b\u503c\u3002
\u53ef\u4ee5\u770b\u51fa\uff0c\u6750\u6599\u7684\u7535\u963b\u5927\u5c0f\u4e0e\u6750\u6599\u7684\u957f\u5ea6\u6210\u6b63\u6bd4\uff0c\u5373\u5728\u6750\u6599\u548c\u6a2a\u622a\u9762\u79ef\u4e0d\u53d8\u65f6\uff0c\u957f\u5ea6\u8d8a\u957f\uff0c\u6750\u6599\u7535\u963b\u8d8a\u5927\uff1a\u800c\u4e0e\u6750\u6599\u6a2a\u622a\u9762\u79ef\u6210\u53cd\u6bd4\uff0c\u5373\u5728\u6750\u6599\u548c\u957f\u5ea6\u4e0d\u53d8\u65f6\uff0c\u6a2a\u622a\u9762\u79ef\u8d8a\u5927\uff0c\u7535\u963b\u8d8a\u5c0f\u3002
\u62d3\u5c55\u8d44\u6599\u7535\u963b\u7387\uff08resistivity\uff09\u662f\u7528\u6765\u8868\u793a\u5404\u79cd\u7269\u8d28\u7535\u963b\u7279\u6027\u7684\u7269\u7406\u91cf\u3002
\u7535\u963b\u7387\u4e0d\u4ec5\u4e0e\u6750\u6599\u79cd\u7c7b\u6709\u5173\uff0c\u800c\u4e14\u8fd8\u4e0e\u6e29\u5ea6\u3001\u538b\u529b\u548c\u78c1\u573a\u7b49\u5916\u754c\u56e0\u7d20\u6709\u5173\u3002\u91d1\u5c5e\u6750\u6599\u5728\u6e29\u5ea6\u4e0d\u9ad8\u65f6\uff0c\u03c1\u4e0e\u6e29\u5ea6t(\u2103)\u7684\u5173\u7cfb\u662f\u03c1t=\u03c10(1+at)\uff0c\u5f0f\u4e2d\u03c11\u4e0e\u03c10\u5206\u522b\u662ft\u2103\u548c0\u2103\u65f6\u7684\u7535\u963b\u7387;\u03b1\u662f\u7535\u963b\u7387\u7684\u6e29\u5ea6\u7cfb\u6570\uff0c\u4e0e\u6750\u6599\u6709\u5173\u3002\u9530\u94dc\u7684\u03b1\u7ea6\u4e3a1\u00d710-1/\u2103(\u5176\u6570\u503c\u6781\u5c0f)\uff0c\u7528\u5176\u5236\u6210\u7684\u7535\u963b\u5668\u7684\u7535\u963b\u503c\u5728\u5e38\u6e29\u8303\u56f4\u4e0b\u968f\u6e29\u5ea6\u53d8\u5316\u6781\u5c0f\uff0c\u9002\u5408\u4e8e\u4f5c\u6807\u51c6\u7535\u963b\u3002
四色环棕色在三环是100Ω－910Ω 五色环棕色在四环是1K－9.1K
四色环红色在三环是1－9.1K 五色环红色在四环是10K－91K
四色环橙色在三环是10K－91K 五色环橙色在四环是100K－910K
四色环黄色在三环是100K－910K 五色环黄色在四环是1M－9.1M
四色环绿色在三环是1M－9.1M 五色环绿色在四环是10M－91M
四色环蓝色在三环是10M－22M
五色环黑色在四环是100Ω－910Ω
四色环金色在三环是1Ω－9.1Ω 五色环金色在四环是10Ω－91Ω
四色环银色在三环是0.1Ω－0.91Ω 五色环银色在四环是1Ω－9.1Ω
例如：四色环：第一环是棕，第二环是红，第三环是橙，第四环是金色，就是12K。
五色环：第一环是棕，第二环是红，第三环是黑，第四环是红色，第五环是棕，就是12K。
绛旓細妫曚唬琛1锛岀孩浠ｈ〃2锛屾浠ｈ〃3锛岄粍浠ｈ〃4锛岀豢浠ｈ〃5锛岃摑浠ｈ〃6锛岀传浠ｈ〃7锛岀伆浠ｈ〃8锛岀櫧浠ｈ〃9锛岄粦浠ｈ〃0銆傚洓鑹茬幆妫曡壊鍦ㄤ笁鐜槸100惟锛910惟浜旇壊鐜鑹插湪鍥涚幆鏄1K锛9.1K 鍥涜壊鐜孩鑹插湪涓夌幆鏄1锛9.1K 浜旇壊鐜孩鑹插湪鍥涚幆鏄10K锛91K 鍥涜壊鐜鑹插湪涓夌幆鏄10K锛91K浜旇壊鐜鑹插湪鍥涚幆鏄100K锛910K 鍥涜壊鐜粍鑹插湪涓...
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