{"id":147494,"date":"2024-04-27T14:15:04","date_gmt":"2024-04-27T14:15:04","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/4%ec%84%a0%ec%8b%9d-%ec%a0%80%ed%95%ad-%ec%b8%a1%ec%a0%95-%ec%98%b4%eb%af%b8%ed%84%b0\/"},"modified":"2024-04-27T14:15:12","modified_gmt":"2024-04-27T14:15:12","slug":"4%ec%84%a0%ec%8b%9d-%ec%a0%80%ed%95%ad-%ec%b8%a1%ec%a0%95-%ec%98%b4%eb%af%b8%ed%84%b0","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ko\/4%ec%84%a0%ec%8b%9d-%ec%a0%80%ed%95%ad-%ec%b8%a1%ec%a0%95-%ec%98%b4%eb%af%b8%ed%84%b0\/","title":{"rendered":"4\uc120\uc2dd \uc800\ud56d \uce21\uc815 \uc634\ubbf8\ud130"},"content":{"rendered":"

4\uc120\uc2dd \uc800\ud56d \uce21\uc815 \uc634\ubbf8\ud130\uc758 \uc6d0\ub9ac\uc640 \uc0ac\uc6a9 \ubc29\ubc95\uc744 \uc18c\uac1c\ud558\uba70, \uc815\ubc00\ud55c \uc800\ud56d \uce21\uc815\uc744 \uc704\ud574 \uc124\uacc4\ub41c \uce21\uc815 \ub3c4\uad6c\uc758 \uc911\uc694\uc131\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n

\"4\uc120\uc2dd<\/p>\n

4\uc120\uc2dd \uc800\ud56d \uce21\uc815 \uc634\ubbf8\ud130\ub780?<\/h2>\n

\uc804\uae30\uc640 \uc790\uae30 \ud604\uc0c1\uc740 \uc790\uc5f0\uacc4\uc5d0\uc11c \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud558\uba70, \uc774\ub7ec\ud55c \ud604\uc0c1\ub4e4\uc744 \uc774\ud574\ud558\uae30 \uc704\ud574 \uc6b0\ub9ac\ub294 \ub2e4\uc591\ud55c \uce21\uc815 \ub3c4\uad6c\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. 4\uc120\uc2dd \uc800\ud56d \uce21\uc815 \uc634\ubbf8\ud130<\/u>(4-Wire Resistance Measurement Ohmmeter)\ub294 \uc815\ubc00\ud55c \uc800\ud56d \uce21\uc815\uc744 \uc704\ud574 \uc124\uacc4\ub41c \ud558\ub098\uc758 \ub3c4\uad6c\ub85c, \uc2e4\ud5d8\uc2e4\uc774\ub098 \uc804\uc790\uacf5\ud559 \ubd84\uc57c\uc5d0\uc11c \ub9e4\uc6b0 \uc720\uc6a9\ud558\uac8c \uc4f0\uc785\ub2c8\ub2e4.<\/p>\n

\uae30\ubcf8\uc801\uc73c\ub85c \uc800\ud56d\uc744 \uce21\uc815\ud558\ub824\uba74 \uc804\uc555\uacfc \uc804\ub958\uc758 \ube44\uc728\uc744 \uce21\uc815\ud574\uc57c \ud558\ub294\ub370, \uc774\ub97c \uc704\ud55c \ubc95\uce59\uc774 \uc624\uc634\uc758 \ubc95\uce59<\/u>\uc785\ub2c8\ub2e4. \uc624\uc634\uc758 \ubc95\uce59\uc740 \uc804\uc555(V)\uc740 \uc800\ud56d(R)\uacfc \uc804\ub958(I)\uc758 \uacf1\uacfc \uac19\ub2e4\uace0 \ub9d0\ud569\ub2c8\ub2e4. \uc218\ud559\uc801\uc73c\ub85c \uc774\ub97c \ud45c\ud604\ud558\uba74 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n

\\[ V = I * R \\]<\/p>\n

\ud558\uc9c0\ub9cc \uc77c\ubc18\uc801\uc778 \ub450\uc120\uc2dd \uc800\ud56d \uce21\uc815 \ubc29\uc2dd\uc5d0\uc11c\ub294 \uce21\uc815\ud558\ub294 \ub3c4\uc911\uc5d0 \uc120\uc758 \uc800\ud56d\uc774\ub098 \uc811\ucd09 \ubd80\uc704\uc758 \uc800\ud56d \ub54c\ubb38\uc5d0 \uc624\ucc28\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. 4\uc120\uc2dd \uc800\ud56d \uce21\uc815 \ubc29\uc2dd\uc740 \uc774\ub7ec\ud55c \uc624\ucc28\ub97c \uc904\uc774\uae30 \uc704\ud574 \uac1c\ubc1c\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n

4\uc120\uc2dd \uc800\ud56d \uce21\uc815 \ubc29\uc2dd\uc758 \uc6d0\ub9ac<\/h2>\n

4\uc120\uc2dd \uc800\ud570 \uce21\uc815 \ubc29\uc2dd\uc740 \uc800\ud56d\uc744 \uce21\uc815\ud560 \ub54c \uc120\uc758 \uc800\ud56d\uc774\ub098 \uc811\ucd09 \uc800\ud56d\uc774 \uacb0\uacfc\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5\uc744 \uc81c\uac70\ud560 \uc218 \uc788\ub3c4\ub85d \ub3c4\uc640\uc90d\ub2c8\ub2e4. \uc774 \ubc29\uc2dd\uc740 \uc800\ud56d\uc744 \uce21\uc815\ud558\ub294 \uc8fc\uc694 \uc120 \ub450 \uac1c\uc640, \uc2e4\uc81c\ub85c \uc800\ud56d\uc744 \uce21\uc815\ud558\ub294 \ubcc4\ub3c4\uc758 \uc804\ub958\ub97c \uacf5\uae09\ud558\ub294 \uc120 \ub450 \uac1c\ub85c \uc774\ub8e8\uc5b4\uc9d1\ub2c8\ub2e4. \uc774\ub807\uac8c \ubd84\ub9ac\ub41c \uc120\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc804\ub958\ub97c \uc804\ub2ec\ud558\uace0, \ub3d9\uc2dc\uc5d0 \ub2e4\ub978 \uc30d\uc758 \uc120\uc744 \uc0ac\uc6a9\ud558\uc5ec \ubc1c\uc0dd\ud558\ub294 \uc804\uc555 \uac15\ud558\ub97c \uce21\uc815\ud569\ub2c8\ub2e4.<\/p>\n

\uc774 \ubc29\ubc95\uc758 \ud575\uc2ec\uc740 \uc804\ub958\uac00 \ud750\ub974\ub294 \uc120(circuit)\uacfc \uc800\ud56d\uc744 \uce21\uc815\ud558\ub294 \uc120(circuit)\uc744 \ubd84\ub9ac\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774 \ubd84\ub9ac\ub97c \ud1b5\ud574 \uce21\uc815 \ud68c\ub85c\uc5d0\uc11c\uc758 \uae30\uc0dd \uc800\ud56d(parasitic resistance)\uc744 \uac70\uc758 \ubb34\uc2dc\ud560 \uc218 \uc788\uac8c \ub418\ubbc0\ub85c, \ub9e4\uc6b0 \ub0ae\uc740 \uc800\ud56d \uac12\uc744 \uac00\uc9c4 \ubb3c\uc9c8\uc774\ub098 \uc18c\uc7ac\uc758 \uc800\ud56d\uc744 \ub9e4\uc6b0 \uc815\ubc00\ud558\uac8c \uce21\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

    \n
  • \uc804\ub958\uacf5\uae09\uc120(Current leads): \uc804\ub958\ub97c \uc800\ud56d\uccb4\uc5d0 \ud758\ub824\ubcf4\ub0bc \ub54c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/li>\n
  • \uc804\uc555\uce21\uc815\uc120(Voltage leads): \uc800\ud56d\uccb4\uc758 \uc591\ub2e8\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \uc804\uc555 \uac15\ud558\ub97c \uce21\uc815\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n

    \uc2e4\uc81c \uc800\ud56d \uce21\uc815\uc5d0\uc11c\ub294 \uba3c\uc800 \uc804\ub958 \uacf5\uae09\uc120\uc744 \ud1b5\ud574 \uc54c\ub824\uc9c4 \uc804\ub958(I)\ub97c \uc800\ud56d\uccb4\uc5d0 \ud758\ub824\ubcf4\ub0b4\uace0, \uc804\uc555 \uce21\uc815\uc120\uc744 \ud1b5\ud574 \uc804\uc555 \uac15\ud558(V)\ub97c \uce21\uc815\ud569\ub2c8\ub2e4. \uc624\uc634\uc758 \ubc95\uce59\uc5d0 \uc758\ud574\uc11c \uc774 \ub450 \uac12\uc744 \ub098\ub204\uc5b4 \uc800\ud56d\uac12(R)\uc744 \uad6c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

    \\[ R = \\frac{V}{I} \\]<\/p>\n

    4\uc120\uc2dd \uc634\ubbf8\ud130\uc758 \uc2e4\uc81c \uc751\uc6a9<\/h2>\n

    4\uc120\uc2dd \uc634\ubbf8\ud130\ub294 \uc804\uc790 \uc18c\uc790\uc758 \uc815\ubc00 \uce21\uc815\ubfd0\ub9cc \uc544\ub2c8\ub77c \ud488\uc9c8 \uad00\ub9ac\uc640 \uc5f0\uad6c \uac1c\ubc1c\uc5d0\uc11c\ub3c4 \uc911\uc694\ud558\uac8c \ud65c\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n

    \uc608\ub97c \ub4e4\uc5b4, \ucd08\uc815\ubc00 \ubd80\ud488\uc744 \uc81c\uc791\ud560 \ub54c\uc5d0\ub294 \uac01 \ubd80\ud488\uc758 \uc800\ud56d\uac12\uc774 \uc815\ud655\ud574\uc57c \ud558\uba70, \uc774\ub54c 4\uc120\uc2dd \uc800\ud56d \uce21\uc815 \ubc29\uc2dd\uc740 \ubd88\ud544\uc694\ud55c \uc624\ucc28\ub97c \ucd5c\uc18c\ud654\ud558\uc5ec \uc815\ud655\ud55c \uc800\ud56d\uac12\uc744 \ubcf4\uc7a5\ud569\ub2c8\ub2e4. \ub610\ud55c, \uc800\ud56d\uc774 \ub0ae\uc740 \uc18c\uc7ac, \uc608\ub97c \ub4e4\uc5b4 \uc288\ud37c\ucee8\ub355\ud130\ub098 \ubc84\uc2a4\ubc14 \uac19\uc740 \uc804\ub3c4\uc131\uc774 \ub192\uc740 \uae08\uc18d\uc758 \uacbd\uc6b0, \uae30\uc874\uc758 \ub450\uc120\uc2dd \uce21\uc815 \ubc29\uc2dd\uc73c\ub85c\ub294 \uc815\ud655\ud55c \uce21\uc815\uc774 \uc5b4\ub835\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc18c\uc7ac\uc758 \uc800\ud56d \uce21\uc815\uc5d0 4\uc120\uc2dd \uce21\uc815 \ubc29\uc2dd\uc774 \ud2b9\ud788 \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n

    \ubfd0\ub9cc \uc544\ub2c8\ub77c, \uc13c\uc11c\uc758 \uc815\ubc00 \uce98\ub9ac\ube0c\ub808\uc774\uc158(calibration)\uc774\ub098 \ub85c\ubd07\uacf5\ud559, \ud56d\uacf5\uc6b0\uc8fc \ubd84\uc57c\uc640 \uac19\uc774 \ub192\uc740 \uc815\ubc00\ub3c4\uac00 \uc694\uad6c\ub418\ub294 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\uc11c\ub3c4 4\uc120\uc2dd \uc800\ud56d \uce21\uc815 \ubc29\uc2dd\uc774 \uc801\uadf9\uc801\uc73c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n

    \uce21\uc815 \uc2dc \uc8fc\uc758\uc0ac\ud56d<\/h2>\n

    \ube44\ub85d 4\uc120\uc2dd \uc800\ud56d \uce21\uc815 \ubc29\uc2dd\uc774 \uc815\ubc00 \uce21\uc815\uc5d0 \uc720\ub9ac\ud558\uc9c0\ub9cc, \uc0ac\uc6a9 \uc2dc \uba87 \uac00\uc9c0 \uc8fc\uc758\uc0ac\ud56d\uc744 \uc9c0\ucf1c\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

      \n
    • \uc0ac\uc6a9\ub418\ub294 \uc804\uc555\uacfc \uc804\ub958\uc758 \uce21\uc815 \ub77c\uc778\uc740 \uac00\ub2a5\ud55c \uae68\ub057\ud558\uace0 \uc548\uc815\uc801\uc778 \uc811\ucd09\uc744 \uc720\uc9c0\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n
    • \uc8fc\ubcc0 \ud658\uacbd \ubcc0\ud654, \ud2b9\ud788 \uc628\ub3c4 \ubcc0\ub3d9\uc774 \uce21\uc815 \uacb0\uacfc\uc5d0 \uc601\ud5a5\uc744 \uc904 \uc218 \uc788\uc73c\ubbc0\ub85c, \uc2e4\ud5d8 \ud658\uacbd\uc744 \ud1b5\uc81c\ud560 \ud544\uc694\uac00 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n
    • \uce21\uc815\ud558\ub824\ub294 \uc800\ud56d\uccb4\uac00 \uc9c1\uc811\uc801\uc778 \uc5f4\uc774\ub098 \uae30\uacc4\uc801 \uc2a4\ud2b8\ub808\uc2a4\ub97c \ubc1b\uc9c0 \uc54a\ub3c4\ub85d \uc8fc\uc758\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n

      \uc774\ub7ec\ud55c \uc8fc\uc758\uc0ac\ud56d\uc744 \uc9c0\ud0a4\uba74\uc11c \uce21\uc815\ud558\uba74, 4\uc120\uc2dd \uc800\ud56d \uce21\uc815 \uc634\ubbf8\ud130\ub294 \ub2e4\uc591\ud55c \uc2e4\ud5d8\uacfc \uc0b0\uc5c5 \ubd84\uc57c\uc5d0\uc11c \ub9e4\uc6b0 \uc815\ud655\ud55c \uc800\ud56d \uac12\uc744 \uc81c\uacf5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

      \uacb0\ub860<\/h2>\n

      \uc804\uae30\uc640 \uc804\uc790\ub97c \ub2e4\ub8e8\ub294 \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \uc815\ubc00\ud55c \uc800\ud56d \uce21\uc815\uc740 \ud544\uc218\uc801\uc785\ub2c8\ub2e4. 4\uc120\uc2dd \uc800\ud56d \uce21\uc815 \uc634\ubbf8\ud130\ub294 \uc811\ucd09 \uc800\ud56d\uacfc \uc120\uc758 \uc800\ud56d\uc774 \uacb0\uacfc\ub97c \uc65c\uace1\ud558\ub294 \uac83\uc744 \ubc29\uc9c0\ud558\uc5ec \uc815\ubc00\ud55c \uce21\uc815\uc774 \uac00\ub2a5\ud558\uac8c \ud574 \uc8fc\uba70, \uc774\ub294 \uc2e0\ub8b0\ub3c4 \ub192\uc740 \uc804\uc790 \ubd80\ud488 \uc81c\uc791\uacfc \ud488\uc9c8 \uad00\ub9ac\uc5d0 \uacb0\uc815\uc801\uc778 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \ub610\ud55c, \uc5f0\uad6c \uac1c\ubc1c\uacfc \uace0\ub3c4\uc758 \uae30\uc220\uc774 \uc694\uad6c\ub418\ub294 \ubd84\uc57c\uc5d0\uc11c\ub294 \uc774 \ubc29\uc2dd\uc758 \uc911\uc694\uc131\uc774 \ub354\uc6b1 \uac15\uc870\ub429\ub2c8\ub2e4.<\/p>\n

      \ucd08\ubcf4\uc790\ub4e0 \uc804\ubb38\uac00\ub4e0, \uc6b0\ub9ac \ubaa8\ub450\uac00 \uc774\ub7ec\ud55c \ub3c4\uad6c\uc758 \uc6d0\ub9ac\uc640 \uc0ac\uc6a9\ubc95\uc744 \uc774\ud574\ud568\uc73c\ub85c\uc368 \ubcf4\ub2e4 \ubc1c\uc804\ub41c \uae30\uc220\uacfc \uc81c\ud488\uc758 \uac1c\ubc1c\uc5d0 \uae30\uc5ec\ud560 \uc218 \uc788\uc744 \uac83\uc785\ub2c8\ub2e4. 4\uc120\uc2dd \uc800\ud56d \uce21\uc815 \ubc29\uc2dd\uc758 \uc62c\ubc14\ub978 \uc774\ud574\uc640 \uc801\uc6a9\uc740 \uc804\uae30\uc640 \uc804\uc790 \ubd84\uc57c\uc758 \uc131\uc7a5\uacfc \ud601\uc2e0\uc744 \uc704\ud55c \uc911\uc694\ud55c \ubc1c\ud310\uc744 \ub9c8\ub828\ud574 \uc90d\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"

      4\uc120\uc2dd \uc800\ud56d \uce21\uc815 \uc634\ubbf8\ud130\uc758 \uc6d0\ub9ac\uc640 \uc0ac\uc6a9 \ubc29\ubc95\uc744 \uc18c\uac1c\ud558\uba70, \uc815\ubc00\ud55c \uc800\ud56d \uce21\uc815\uc744 \uc704\ud574 \uc124\uacc4\ub41c \uce21\uc815 \ub3c4\uad6c\uc758 \uc911\uc694\uc131\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n","protected":false},"author":1,"featured_media":177238,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[88],"tags":[89],"class_list":["post-147494","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-88","tag-89","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"\n4\uc120\uc2dd \uc800\ud56d \uce21\uc815 \uc634\ubbf8\ud130 | \uc791\ub3d9 \ubc29\uc2dd, \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8 \ubc0f \uc7a5\uc810<\/title>\n<meta name=\"description\" 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