{"id":213277,"date":"2024-09-28T02:05:00","date_gmt":"2024-09-28T02:05:00","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/?p=213277"},"modified":"2024-09-28T02:05:00","modified_gmt":"2024-09-28T02:05:00","slug":"%ec%98%a8%eb%8f%84%ea%b0%80-%ec%a0%84%eb%8f%84%ec%84%b1%ec%97%90-%eb%af%b8%ec%b9%98%eb%8a%94-%ec%98%81%ed%96%a5","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ko\/%ec%98%a8%eb%8f%84%ea%b0%80-%ec%a0%84%eb%8f%84%ec%84%b1%ec%97%90-%eb%af%b8%ec%b9%98%eb%8a%94-%ec%98%81%ed%96%a5\/","title":{"rendered":"\uc628\ub3c4\uac00 \uc804\ub3c4\uc131\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5"},"content":{"rendered":"<p class=\"sidekick\">\uc628\ub3c4\uac00 \uc804\ub3c4\uc131\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5: \uc628\ub3c4\uc758 \ubcc0\ud654\uac00 \uc804\ub3c4\uc131\uc5d0 \uc5b4\ub5bb\uac8c \uc601\ud5a5\uc744 \ubbf8\uce58\ub294\uc9c0 \uc124\uba85\ud558\uace0, \uc804\ub3c4\uc131\uc744 \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \ubc29\ubc95\uc744 \uc81c\uc2dc\ud569\ub2c8\ub2e4.<\/p>\n<h2>\uc628\ub3c4\uac00 \uc804\ub3c4\uc131\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5<\/h2>\n<p>\uc804\ub3c4\uc131\uc740 \ubb3c\uc9c8\uc774 \uc804\ub958\ub97c \uc5bc\ub9c8\ub098 \uc798 \uc804\ub3c4\ud558\ub294\uc9c0\ub97c \ub098\ud0c0\ub0b4\ub294 \ubb3c\ub9ac\uc801 \ud2b9\uc131\uc785\ub2c8\ub2e4. \uc774 \uc804\ub3c4\uc131\uc740 \uc628\ub3c4\uc5d0 \uc758\ud574 \ud06c\uac8c \uc601\ud5a5\uc744 \ubc1b\uc2b5\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 \uc628\ub3c4\uac00 \uc804\ub3c4\uc131\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\uae08\uc18d\uc758 \uc804\ub3c4\uc131\uacfc \uc628\ub3c4<\/h2>\n<p>\uae08\uc18d\uc740 \uc790\uc720 \uc804\uc790\uac00 \ub9ce\uc544 \ub192\uc740 \uc804\ub3c4\uc131\uc744 \uac00\uc9c0\uba70, \ubcf4\ud1b5 \uc628\ub3c4\uac00 \uc62c\ub77c\uac08\uc218\ub85d \uc804\ub3c4\uc131\uc774 \uac10\uc18c\ud569\ub2c8\ub2e4. \uc774 \ud604\uc0c1\uc744 \uc774\ud574\ud558\uae30 \uc704\ud574 \uae08\uc18d\uc758 \uc804\ub3c4\uc131 \ubc29\uc815\uc2dd\uc744 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4:<\/p>\n<p>\uc804\ub3c4\ub3c4(\u03c3)\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \ud45c\ud604\ub429\ub2c8\ub2e4:<\/p>\n<p>\\[\u03c3 = \\frac{1}{\u03c1} \\]<\/p>\n<p>\uc5ec\uae30\uc11c \u03c1\ub294 \uc800\ud56d\uc785\ub2c8\ub2e4. \uae08\uc18d\uc758 \uc800\ud56d\uc740 \uc628\ub3c4\uc640 \uc9c1\uc811\uc801\uc73c\ub85c \uad00\ub828\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc628\ub3c4\uac00 \uc99d\uac00\ud558\uba74 \uae08\uc18d \uc6d0\uc790\ub4e4\uc774 \ub354 \ub9ce\uc774 \uc9c4\ub3d9\ud558\uac8c \ub418\uc5b4 \uc790\uc720 \uc804\uc790\uc758 \uc774\ub3d9\uc744 \ubc29\ud574\ud569\ub2c8\ub2e4. \uc774\ub85c \uc778\ud574 \uc800\ud56d\uc774 \uc99d\uac00\ud558\uac8c \ub418\uace0, \uc774\uc5d0 \ub530\ub77c \uc804\ub3c4\ub3c4\uac00 \uac10\uc18c\ud569\ub2c8\ub2e4.<\/p>\n<h2>\ubc18\ub3c4\uccb4\uc758 \uc804\ub3c4\uc131\uacfc \uc628\ub3c4<\/h2>\n<p>\ubc18\ub3c4\uccb4\ub294 \uae08\uc18d\uacfc\ub294 \ub2e4\ub974\uac8c \uc628\ub3c4\uc5d0 \ub530\ub77c \uc804\ub3c4\uc131\uc774 \ud06c\uac8c \ubcc0\ud654\ud569\ub2c8\ub2e4. \ubc18\ub3c4\uccb4\uc758 \uacbd\uc6b0 \uc628\ub3c4\uac00 \uc0c1\uc2b9\ud558\uba74 \uc804\ub3c4\uc131\uc774 \uc99d\uac00\ud569\ub2c8\ub2e4. \ubc18\ub3c4\uccb4 \ub0b4\ubd80\uc5d0\uc11c\ub294 \uc628\ub3c4\uac00 \uc62c\ub77c\uac00\uba74 \ub354 \ub9ce\uc740 \uc804\uc790\uac00 \uc804\ub3c4\ub300(conduction band)\ub85c \uc774\ub3d9\ud558\uac8c \ub418\uba70, \uc774\ub294 \uc804\ub3c4\uc131\uc744 \ub192\uc774\ub294 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4.<\/p>\n<p>\ubc18\ub3c4\uccb4\uc758 \uc804\ub3c4\ub3c4\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uc2dd\uc73c\ub85c \ud45c\ud604\ub429\ub2c8\ub2e4:<\/p>\n<p>\\[\u03c3 = q n \u03bc \\]<\/p>\n<p>\uc5ec\uae30\uc11c q\ub294 \uc804\uc790\uc758 \uc804\ud558, n\uc740 \uc804\uc790 \uc218, \u03bc\ub294 \uc774\ub3d9\ub3c4\uc785\ub2c8\ub2e4. \ubc18\ub3c4\uccb4\uc5d0\uc11c\ub294 \uc628\ub3c4\uac00 \uc0c1\uc2b9\ud558\uba74 n\uc774 \uc99d\uac00\ud558\uc5ec \uc804\uccb4 \uc804\ub3c4\ub3c4\uac00 \uc99d\uac00\ud569\ub2c8\ub2e4.<\/p>\n<h2>\ucd08\uc804\ub3c4\uccb4<\/h2>\n<p>\ucd08\uc804\ub3c4\uccb4\ub294 \ud2b9\uc815 \uc800\uc628\uc5d0\uc11c \uc804\uae30 \uc800\ud56d\uc774 0\uc774 \ub418\ub294 \ubb3c\uc9c8\uc785\ub2c8\ub2e4. \uc774\ub294 \uc628\ub3c4\uac00 \uc784\uacc4 \uc628\ub3c4(T<sub>c<\/sub>) \uc774\ud558\ub85c \ub0b4\ub824\uac08 \ub54c \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \ucd08\uc804\ub3c4\uccb4\uc5d0\uc11c\ub294 \uc804\ud558\uac00 \ubb34\uc800\ud56d\uc73c\ub85c \ud750\ub974\uae30 \ub54c\ubb38\uc5d0 \ub9e4\uc6b0 \ub192\uc740 \uc804\ub3c4\uc131\uc744 \uac00\uc9d1\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud2b9\uc131\uc740 MRI \uae30\uae30\ub098 \uace0\uc18d \uc790\uae30\ubd80\uc0c1\uc5f4\ucc28 \ub4f1\uc5d0 \uc774\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n<p>\ucd08\uc804\ub3c4\uccb4\uc758 \uc804\ub3c4\ub3c4\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \ud45c\ud604\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<p>\\[\u03c3 = \u221e \\]<\/p>\n<h2>\uacb0\ub860<\/h2>\n<p>\uc628\ub3c4\ub294 \ubb3c\uc9c8\uc758 \uc804\ub3c4\uc131\uc5d0 \ud070 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. \uae08\uc18d\uc740 \uc628\ub3c4\uac00 \uc99d\uac00\ud560\uc218\ub85d \uc804\ub3c4\uc131\uc774 \ub0ae\uc544\uc9c0\uace0, \ubc18\ub3c4\uccb4\ub294 \uc628\ub3c4\uac00 \uc99d\uac00\ud560\uc218\ub85d \uc804\ub3c4\uc131\uc774 \ub192\uc544\uc9c0\uba70, \ucd08\uc804\ub3c4\uccb4\ub294 \uc784\uacc4 \uc628\ub3c4 \uc774\ud558\uc5d0\uc11c \uc804\ub3c4\uc131\uc774 \ubb34\ud55c\ub300\uac00 \ub429\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc774\ud574\ub294 \uc804\uc790\uae30\uae30 \uc124\uacc4\uc640 \uac19\uc740 \ub2e4\uc591\ud55c \uacf5\ud559 \uc751\uc6a9\uc5d0 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc628\ub3c4\uac00 \uc804\ub3c4\uc131\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5: \uc628\ub3c4\uc758 \ubcc0\ud654\uac00 \uc804\ub3c4\uc131\uc5d0 \uc5b4\ub5bb\uac8c \uc601\ud5a5\uc744 \ubbf8\uce58\ub294\uc9c0 \uc124\uba85\ud558\uace0, \uc804\ub3c4\uc131\uc744 \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \ubc29\ubc95\uc744 \uc81c\uc2dc\ud569\ub2c8\ub2e4.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[101],"tags":[],"class_list":["post-213277","post","type-post","status-publish","format-standard","hentry","category-101","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\uc628\ub3c4\uac00 \uc804\ub3c4\uc131\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5<\/title>\n<meta name=\"description\" content=\"\uc628\ub3c4\uac00 \uc804\ub3c4\uc131\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5: \uc628\ub3c4\uc758 \ubcc0\ud654\uac00 \uc804\ub3c4\uc131\uc5d0 \uc5b4\ub5bb\uac8c 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