{"id":148700,"date":"2024-04-27T17:07:21","date_gmt":"2024-04-27T17:07:21","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%ec%b4%88%ec%9d%8c%ed%8c%8c-%ec%84%bc%ec%84%9c\/"},"modified":"2024-04-27T17:07:29","modified_gmt":"2024-04-27T17:07:29","slug":"%ec%b4%88%ec%9d%8c%ed%8c%8c-%ec%84%bc%ec%84%9c","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ko\/%ec%b4%88%ec%9d%8c%ed%8c%8c-%ec%84%bc%ec%84%9c\/","title":{"rendered":"\ucd08\uc74c\ud30c \uc13c\uc11c"},"content":{"rendered":"<p class=\"sidekick\">\ucd08\uc74c\ud30c \uc13c\uc11c\uc758 \uc791\ub3d9 \uc6d0\ub9ac\uc640 \ub2e4\uc591\ud55c \uc0b0\uc5c5\uc5d0\uc11c\uc758 \uc751\uc6a9 \ubc29\ubc95\uc744 \uc124\uba85\ud558\ub294 \uae00\uc785\ub2c8\ub2e4.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2024\/04\/\ucd08\uc74c\ud30c-\uc13c\uc11c.png\" alt=\"\ucd08\uc74c\ud30c \uc13c\uc11c\"\/><\/p>\n<h2>\ucd08\uc74c\ud30c \uc13c\uc11c\uc758 \uc6d0\ub9ac\uc640 \uc751\uc6a9<\/h2>\n<p>\ucd08\uc74c\ud30c \uc13c\uc11c\ub294 \ubb3c\uccb4\uc640\uc758 \uac70\ub9ac\ub97c \uce21\uc815\ud558\uac70\ub098 \ubb3c\uccb4\uc758 \uc874\uc7ac\ub97c \uac10\uc9c0\ud558\ub294 \ub370 \ub110\ub9ac \uc0ac\uc6a9\ub418\ub294 \uc7a5\uce58\uc785\ub2c8\ub2e4. \uc774 \uc13c\uc11c\ub294 \uc77c\uc0c1 \uc0dd\ud65c \uc18d \ub9ce\uc740 \uae30\uae30\uc5d0 \uc751\uc6a9\ub418\uba70, \uc790\ub3d9\ucc28 \uc8fc\ucc28 \ubcf4\uc870 \uc2dc\uc2a4\ud15c\uc5d0\uc11c\ubd80\ud130 \uc0b0\uc5c5\uc6a9 \ub808\ubca8 \uce21\uc815\uae30, \uc758\ub8cc \uc601\uc0c1 \uc7a5\ube44\uc5d0 \uc774\ub974\uae30\uae4c\uc9c0 \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \uad11\ubc94\uc704\ud558\uac8c \ud65c\uc6a9\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub807\ub2e4\uba74 \ucd08\uc74c\ud30c \uc13c\uc11c\ub294 \uc5b4\ub5bb\uac8c \uc791\ub3d9\ud558\uba70, \ubb3c\ub9ac\uc801 \uc6d0\ub9ac\ub294 \ubb34\uc5c7\uc77c\uae4c\uc694?<\/p>\n<h2>\ucd08\uc74c\ud30c \uc13c\uc11c\uc758 \ubb3c\ub9ac\uc801 \uc6d0\ub9ac<\/h2>\n<p>\ucd08\uc74c\ud30c \uc13c\uc11c\ub294 \uc774\ub984\uc5d0\uc11c \uc54c \uc218 \uc788\ub4ef\uc774, \uc778\uac04\uc758 \uccad\uac01 \ubc94\uc704\ub97c \ub118\uc5b4\uc11c\ub294 \uace0\uc8fc\ud30c \uc74c\ud30c, \uc989 \ucd08\uc74c\ud30c\ub97c \uc774\uc6a9\ud569\ub2c8\ub2e4. \uc0ac\ub78c\uc774 \ub4e4\uc744 \uc218 \uc788\ub294 \uc8fc\ud30c\uc218 \ubc94\uc704\ub294 \ub300\ub7b5 20Hz\uc5d0\uc11c 20kHz\uc778\ub370 \ube44\ud574, \ucd08\uc74c\ud30c \uc13c\uc11c\uc5d0\uc11c \uc0ac\uc6a9\ub418\ub294 \uc74c\ud30c\ub294 20kHz \uc774\uc0c1\uc758 \uc8fc\ud30c\uc218\ub97c \uac00\uc9d1\ub2c8\ub2e4. \uc774 \uc13c\uc11c\ub294 \ucd08\uc74c\ud30c \ubc1c\uc0dd\uae30\ub97c \ud1b5\ud574 \uace0\uc8fc\ud30c \uc74c\ud30c\ub97c \ubc1c\uc0dd\uc2dc\ud0a4\uace0, \uc774 \uc74c\ud30c\uac00 \uc8fc\ubcc0 \ubb3c\uccb4\uc5d0 \ubd80\ub52a\ud600 \ubc18\uc0ac\ub418\uc5b4 \ub3cc\uc544\uc624\uba74, \uc13c\uc11c\uac00 \uc774\ub97c \uac10\uc9c0\ud558\uc5ec \ucc98\ub9ac\ud569\ub2c8\ub2e4. \ubc18\uc0ac\ub41c \uc74c\ud30c\uc758 \uc2dc\uac04\uc744 \uce21\uc815\ud568\uc73c\ub85c\uc368, \ubb3c\uccb4\uae4c\uc9c0\uc758 \uac70\ub9ac\ub97c \uacc4\uc0b0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<ul>\n<li>\ubc1c\uc0dd\ub41c \ucd08\uc74c\ud30c\uc758 \uc18d\ub3c4 (v)<\/li>\n<li>\uc13c\uc11c\ub85c \ub3cc\uc544\uc628 \ucd08\uc74c\ud30c\uc758 \uc5ec\ud589 \uc2dc\uac04 (t)<\/li>\n<li>\ubb3c\uccb4\uae4c\uc9c0\uc758 \uac70\ub9ac (d)<\/li>\n<\/ul>\n<p>\uc5ec\uae30\uc11c \uc911\uc694\ud55c \uac83\uc740 \ucd08\uc74c\ud30c\uc758 \uc18d\ub3c4\ub294 \uc8fc\ubcc0 \ub9e4\uccb4, \uc989 \uc804\ub2ec\ub418\ub294 \ub9e4\uc9c8\uc758 \uc885\ub958\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c4\ub2e4\ub294 \uc810\uc785\ub2c8\ub2e4. \ub300\uae30 \uc911\uc758 \ucd08\uc74c\ud30c \uc18d\ub3c4\ub294 \uc628\ub3c4\uc5d0 \ub530\ub77c \ub2e4\uc18c \ubcc0\ud654\ud558\uc9c0\ub9cc, \ubcf4\ud1b5 \uc57d 343m\/s(\ubbf8\ud130\/\ucd08)\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c, \uac70\ub9ac\ub97c \uad6c\ud558\ub294 \uae30\ubcf8 \uacf5\uc2dd\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n<p><i>d = (v * t) \/ 2<\/i><\/p>\n<p>\uc774 \uacf5\uc2dd\uc740 \ucd08\uc74c\ud30c\uac00 \uc13c\uc11c\ub85c\ubd80\ud130 \ubb3c\uccb4\uae4c\uc9c0 \uc774\ub3d9\ud558\ub294 \ub370 \uac78\ub9b0 \uc2dc\uac04\uacfc \ubb3c\uccb4\ubd80\ud130 \uc13c\uc11c\uae4c\uc9c0 \ub3cc\uc544\uc624\ub294 \ub370 \uac78\ub9b0 \uc2dc\uac04\uc758 \ud569\uc774\ubbc0\ub85c, \ubb3c\uccb4\uae4c\uc9c0\uc758 \uc2e4\uc81c \uac70\ub9ac\ub97c \uad6c\ud558\uae30 \uc704\ud574 2\ub85c \ub098\ub204\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<h2>\ucd08\uc74c\ud30c \uc13c\uc11c\uc758 \uc8fc\uc694 \uad6c\uc131 \uc694\uc18c<\/h2>\n<p>\ucd08\uc74c\ud30c \uc13c\uc11c\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uc8fc\uc694 \uad6c\uc131 \uc694\uc18c\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<ol>\n<li><strong>\ucd08\uc74c\ud30c \ubc1c\uc0dd\uae30:<\/strong> \uace0\uc8fc\ud30c\uc758 \uc74c\ud30c\ub97c \ubc1c\uc0dd\uc2dc\ud0a4\ub294 \uc7a5\uce58\uc785\ub2c8\ub2e4.<\/li>\n<li><strong>\ud53c\uc5d0\uc870 \uc804\uae30 \uc18c\uc790:<\/strong> \uc804\uae30 \uc2e0\ud638\ub97c \ucd08\uc74c\ud30c\ub85c \ubcc0\ud658\ud558\uac70\ub098, \ubc18\ub300\ub85c \ucd08\uc74c\ud30c\ub97c \uc804\uae30 \uc2e0\ud638\ub85c \ubcc0\ud658\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/li>\n<li><strong>\uc218\uc2e0\uae30:<\/strong> \ubc18\uc0ac\ub41c \ucd08\uc74c\ud30c\ub97c \uc218\uc2e0\ud558\uc5ec \uc804\uae30 \uc2e0\ud638\ub85c \ubcc0\ud658\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uc81c\uc5b4 \ud68c\ub85c:<\/strong> \ubc1c\uc0dd\uc2dc\ud0a8 \ucd08\uc74c\ud30c\uc758 \uc2dc\uac04\uc744 \uae30\ub85d\ud558\uace0, \uc218\uc2e0\ub41c \uc2e0\ud638\uc758 \ud0c0\uc774\ubc0d\uc744 \ubd84\uc11d\ud558\uc5ec \ubb3c\uccb4\uae4c\uc9c0\uc758 \uac70\ub9ac\ub97c \uacc4\uc0b0\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n<p>\uc704\uc758 \uc694\uc18c\ub4e4\uc774 \ud1b5\ud569\ub418\uc5b4 \ucd08\uc74c\ud30c \uc13c\uc11c\ub294 \uc8fc\uc704 \ud658\uacbd\uc744 \uc778\uc2dd\ud558\uace0, \uac01\uc885 \uc81c\uc5b4 \uc2dc\uc2a4\ud15c\uc5d0 \ud544\uc218\uc801\uc778 \uc815\ubcf4\ub97c \uc81c\uacf5\ud558\uac8c \ub429\ub2c8\ub2e4. \ub2e4\uc74c\uc73c\ub85c\ub294 \ucd08\uc74c\ud30c \uc13c\uc11c\uac00 \uc2e4\uc81c\ub85c \uc5b4\ub5bb\uac8c \uc751\uc6a9\ub418\ub294\uc9c0\uc5d0 \ub300\ud55c \uc0ac\ub840\ub97c \uc0b4\ud3b4\ubcf4\ub3c4\ub85d \ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\ucd08\uc74c\ud30c \uc13c\uc11c\uc758 \uc2e4\uc6a9\uc801 \uc751\uc6a9 \uc608<\/h2>\n<p>\ucd08\uc74c\ud30c \uc13c\uc11c\ub294 \uadf8 \uc6d0\ub9ac\uc640 \uad6c\uc131 \uc694\uc18c\ub97c \ubc14\ud0d5\uc73c\ub85c \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \uc751\uc6a9\ub429\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc790\ub3d9\ucc28\uc5d0\uc11c\ub294 \uc8fc\ucc28\ubcf4\uc870\uc2dc\uc2a4\ud15c\uc73c\ub85c \ud65c\uc6a9\ub418\uc5b4 \uc8fc\ucc28 \uc2dc \ubb3c\uccb4\uc640\uc758 \uac70\ub9ac\ub97c \uc6b4\uc804\uc790\uc5d0\uac8c \uc54c\ub824\uc90d\ub2c8\ub2e4. \ub610\ud55c, \uc0b0\uc5c5 \ud604\uc7a5\uc5d0\uc11c\ub294 \ucee8\ud14c\uc774\ub108 \ub0b4\ubd80\uc758 \uc561\uccb4 \ubb3c\uc9c8\uc758 \ub192\uc774\ub098, \uace0\uccb4 \ubb3c\uc9c8\uc758 \uc591\uc744 \uce21\uc815\ud558\ub294 \ub808\ubca8 \uce21\uc815\uae30\ub85c \uc0ac\uc6a9\ub418\uae30\ub3c4 \ud569\ub2c8\ub2e4.<\/p>\n<ul>\n<li>\uc758\ub8cc \ubd84\uc57c\uc5d0\uc11c\ub294 \ucd08\uc74c\ud30c\ub97c \uc774\uc6a9\ud55c \uc9c4\ub2e8 \uae30\uae30\uc778 \ucd08\uc74c\ud30c \uc601\uc0c1(ultrasonography) \uc7a5\ube44\ub85c\uc368, \uc870\uc9c1\uc758 \uad6c\uc870\ub098 \ud608\ub958\uc758 \uc0c1\ud0dc\ub97c \ube44\uce68\uc2b5\uc801\uc73c\ub85c \uad00\ucc30\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li>\ub85c\ubd07\uacf5\ud559\uc5d0\uc11c\ub294 \ub85c\ubd07\uc774 \uc8fc\ubcc0 \ud658\uacbd\uc744 \uc778\uc2dd\ud558\uace0 \uc7a5\uc560\ubb3c\uc744 \ud53c\ud558\uac70\ub098 \uc815\ud655\ud55c \uc704\uce58\ub97c \ucc3e\uae30 \uc704\ud574 \ucd08\uc74c\ud30c \uc13c\uc11c\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/li>\n<li>\uc0dd\ud65c\uac00\uc804\uc5d0\uc11c\ub294 \uacf5\uae30\uccad\uc815\uae30\uc5d0 \ub0b4\uc7a5\ub418\uc5b4 \uacf5\uac04\uc758 \ud06c\uae30\ub97c \uce21\uc815\ud558\uace0 \ud6a8\uc728\uc801\uc778 \uccad\uc815\uc744 \uc704\ud55c \uc815\ubcf4\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p>\uc774\ucc98\ub7fc \ucd08\uc74c\ud30c \uc13c\uc11c\ub294 \uadf8 \ud2b9\uc131\uc0c1 \ub2e4\uc591\ud55c \uae30\uc220 \ubd84\uc57c\uc5d0\uc11c \uc0ac\ub78c\uc758 \uc548\uc804\uc744 \ub3d5\uace0, \uc0dd\ud65c\uc758 \ud3b8\ub9ac\ud568\uc744 \uc99d\uc9c4\uc2dc\ud0a4\ub294 \ub370 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\uacb0\ub860<\/h2>\n<p>\ucd08\uc74c\ud30c \uc13c\uc11c\ub294 \uace0\uc8fc\ud30c\uc758 \uc74c\ud30c\ub97c \uc774\uc6a9\ud574 \ubb3c\uccb4\uc758 \uac70\ub9ac\ub97c \uce21\uc815\ud558\uace0, \uc8fc\ubcc0 \ud658\uacbd\uc744 \uac10\uc9c0\ud558\ub294 \uac15\ub825\ud55c \ub3c4\uad6c\uc785\ub2c8\ub2e4. \uc774 \uc13c\uc11c\uc758 \uae30\ubcf8 \uc6d0\ub9ac\ub97c \uc774\ud574\ud568\uc73c\ub85c\uc368, \uc6b0\ub9ac\ub294 \uc790\ub3d9\ucc28, \uc758\ub8cc, \uc0b0\uc5c5, \uac00\uc815\uc6a9 \uae30\uae30 \ub4f1 \uc5ec\ub7ec \ubd84\uc57c\uc5d0\uc11c \ucd08\uc74c\ud30c \uc13c\uc11c\uac00 \uc5b4\ub5bb\uac8c \ud65c\uc6a9\ub418\ub294\uc9c0\ub97c \uc54c \uc218 \uc788\uc5c8\uc2b5\ub2c8\ub2e4. \uae30\ucd08 \ubb3c\ub9ac \uc6d0\ub9ac\ub97c \uae30\ubc18\uc73c\ub85c \ud55c \uc13c\uc11c \uae30\uc220\uc740 \uc774\ucc98\ub7fc \uc77c\uc0c1 \uc0dd\ud65c\ubd80\ud130 \uc804\ubb38\uc801\uc778 \uc751\uc6a9\uae4c\uc9c0 \uc778\uac04\uc758 \uc0b6\uc744 \ubcf4\ub2e4 \uc548\uc804\ud558\uace0 \ud3b8\ub9ac\ud558\uac8c \ub9cc\ub4dc\ub294 \ub370 \uae30\uc5ec\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ub354 \ub098\uc544\uac00, \ucd08\uc74c\ud30c \uc13c\uc11c\uc640 \uac19\uc740 \uae30\uc220\uc774 \ud5a5\ud6c4 \uc5b4\ub5a0\ud55c \ud601\uc2e0\uc801\uc778 \ubcc0\ud654\ub97c \uac00\uc838\uc62c\uc9c0 \uae30\ub300\ud574 \ubcf4\ub294 \uac83\ub3c4 \ud765\ubbf8\ub86d\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc9c0\uc2dd\uc740 \uc6b0\ub9ac\uac00 \uc0dd\ud65c \uc18d\uc5d0\uc11c \ub9c8\uc8fc\uce58\ub294 \uae30\uc220\uc744 \uc774\ud574\ud558\uace0, \uadf8 \uac00\uce58\ub97c \ub192\uc774 \ud3c9\uac00\ud560 \uc218 \uc788\ub294 \uacc4\uae30\uac00 \ub420 \uac83\uc785\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ucd08\uc74c\ud30c \uc13c\uc11c\uc758 \uc791\ub3d9 \uc6d0\ub9ac\uc640 \ub2e4\uc591\ud55c \uc0b0\uc5c5\uc5d0\uc11c\uc758 \uc751\uc6a9 \ubc29\ubc95\uc744 \uc124\uba85\ud558\ub294 \uae00\uc785\ub2c8\ub2e4.<\/p>\n","protected":false},"author":1,"featured_media":187932,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[88],"tags":[89],"class_list":["post-148700","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":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\ucd08\uc74c\ud30c \uc13c\uc11c | \uc791\ub3d9 \ubc29\uc2dd, \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8 \ubc0f \uc7a5\uc810<\/title>\n<meta name=\"description\" content=\"\ucd08\uc74c\ud30c \uc13c\uc11c\uc758 \uc791\ub3d9 \uc6d0\ub9ac\uc640 \ub2e4\uc591\ud55c \uc0b0\uc5c5\uc5d0\uc11c\uc758 \uc751\uc6a9 \ubc29\ubc95\uc744 \uc124\uba85\ud558\ub294 \uae00\uc785\ub2c8\ub2e4.\" 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