{"id":208566,"date":"2024-03-21T14:06:04","date_gmt":"2024-03-21T14:06:04","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%ec%95%8c%ed%94%84%eb%b2%a4-%ed%8c%8c%eb%8f%99-%eb%b0%a9%ec%a0%95%ec%8b%9d-%ec%a0%95%ec%9d%98-%ea%b3%84%ec%82%b0-%eb%b0%8f-%ec%9d%91%ec%9a%a9\/"},"modified":"2024-05-15T11:29:34","modified_gmt":"2024-05-15T11:29:34","slug":"%ec%95%8c%ed%94%84%eb%b2%a4-%ed%8c%8c%eb%8f%99-%eb%b0%a9%ec%a0%95%ec%8b%9d-%ec%a0%95%ec%9d%98-%ea%b3%84%ec%82%b0-%eb%b0%8f-%ec%9d%91%ec%9a%a9","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ko\/%ec%95%8c%ed%94%84%eb%b2%a4-%ed%8c%8c%eb%8f%99-%eb%b0%a9%ec%a0%95%ec%8b%9d-%ec%a0%95%ec%9d%98-%ea%b3%84%ec%82%b0-%eb%b0%8f-%ec%9d%91%ec%9a%a9\/","title":{"rendered":"\uc54c\ud504\ubca4 \ud30c\ub3d9 \ubc29\uc815\uc2dd | \uc815\uc758, \uacc4\uc0b0 \ubc0f \uc751\uc6a9"},"content":{"rendered":"

\uc54c\ud504\ubca4 \ud30c\ub3d9\uc740 \ud50c\ub77c\uc988\ub9c8\uc758 \uc790\uae30\uc7a5 \uc120\uc744 \ub530\ub77c \uc804\ud30c\ub418\ub294 \uc804\uc790\uae30 \ud30c\ub3d9\uc73c\ub85c, \uc790\uae30\uc7a5\uacfc \ubc00\uc811\ud55c \uad00\uacc4\uac00 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\uc54c\ud504\ubca4 \ud30c\ub3d9(Alfv\u00e9n Waves)\uc774\ub780?<\/h2>\n

\uc54c\ud504\ubca4 \ud30c\ub3d9\uc740 \ud50c\ub77c\uc988\ub9c8 \uc0c1\ud0dc\uc758 \uc804\uc790\uae30 \ub9e4\uc9c8\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \uc804\uc790\uae30 \ud30c\ub3d9\uc758 \ud55c \uc885\ub958\uc785\ub2c8\ub2e4. 1942\ub144 \uc2a4\uc6e8\ub374\uc758 \ubb3c\ub9ac\ud559\uc790 \ud55c\ub178 \uc54c\ud504\ubca4(Hannes Alfv\u00e9n)\uc5d0 \uc758\ud574 \ucc98\uc74c \uc774\ub860\uc801\uc73c\ub85c \uc81c\uc548\ub418\uc5c8\uc73c\uba70, \uc774 \ud30c\ub3d9\uc740 \ud50c\ub77c\uc988\ub9c8 \ub0b4\ubd80\uc758 \uc790\uae30\uc7a5\uacfc \ubc00\uc811\ud558\uac8c \uad00\ub828\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \uc54c\ud504\ubca4 \ud30c\ub3d9\uc740 \uc790\uae30\uc7a5 \uc120\uc744 \ub530\ub77c \uc804\ud30c\ub418\uba70, \uc774\ub85c \uc778\ud574 \ud50c\ub77c\uc988\ub9c8 \ub0b4\uc758 \uc785\uc790\ub4e4\uc774 \uc790\uae30\uc7a5 \uc120\uc744 \ub530\ub77c \uc9c4\ub3d9\ud558\uac8c \ub429\ub2c8\ub2e4.<\/p>\n

\uc54c\ud504\ubca4 \ud30c\ub3d9 \ubc29\uc815\uc2dd<\/h2>\n

\uc54c\ud504\ubca4 \ud30c\ub3d9\uc758 \uc18d\ub3c4\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uc2dd\uc73c\ub85c \uacc4\uc0b0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n

\\[ v_A = \\frac{B}{\\sqrt{\\mu_0 \\rho}} \\]<\/p>\n

\uc5ec\uae30\uc11c \\( v_A \\)\ub294 \uc54c\ud504\ubca4 \ud30c\ub3d9\uc758 \uc18d\ub3c4, \\( B \\)\ub294 \uc790\uae30\uc7a5\uc758 \uc138\uae30, \\( \\mu_0 \\)\ub294 \uc9c4\uacf5\uc758 \ud22c\uc790\uc728, \\( \\rho \\)\ub294 \ud50c\ub77c\uc988\ub9c8\uc758 \ubc00\ub3c4\uc785\ub2c8\ub2e4. \uc774 \uc2dd\uc5d0\uc11c \uc54c \uc218 \uc788\ub4ef\uc774, \uc790\uae30\uc7a5\uc774 \uac15\ud558\uac70\ub098 \ud50c\ub77c\uc988\ub9c8\uc758 \ubc00\ub3c4\uac00 \ub0ae\uc744\uc218\ub85d \uc54c\ud504\ubca4 \ud30c\ub3d9\uc758 \uc18d\ub3c4\ub294 \ube68\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n

\uc54c\ud504\ubca4 \ud30c\ub3d9\uc758 \uacc4\uc0b0 \uc608\uc2dc<\/h2>\n

\uc608\ub97c \ub4e4\uc5b4, \uc790\uae30\uc7a5\uc758 \uc138\uae30\uac00 3 \ud14c\uc2ac\ub77c(Tesla)\uc774\uace0 \ud50c\ub77c\uc988\ub9c8\uc758 \ubc00\ub3c4\uac00 \\(10^{\u221212}\\) kg\/m\u00b3 \uc77c \ub54c\uc758 \uc54c\ud504\ubca4 \ud30c\ub3d9 \uc18d\ub3c4\ub97c \uacc4\uc0b0\ud574 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uacc4\uc0b0\uc744 \uc704\ud574 \uc9c4\uacf5\uc758 \ud22c\uc790\uc728 \\( \\mu_0 \\)\ub294 \ub300\ub7b5 \\(4\\pi \\times 10^{-7}\\) H\/m\ub85c \uc54c\ub824\uc838 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\\[ v_A = \\frac{3}{\\sqrt{(4\\pi \\times 10^{-7}) \\times (10^{-12})}} \\approx 3 \\times 10^6 \\, \\text{m\/s} \\]<\/p>\n

\uc774 \uacb0\uacfc\ub85c\ubd80\ud130 \uc54c\ud504\ubca4 \ud30c\ub3d9\uc774 \ub9e4\uc6b0 \ube60\ub978 \uc18d\ub3c4\ub85c \uc804\ud30c\ub420 \uc218 \uc788\uc74c\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\uc54c\ud504\ubca4 \ud30c\ub3d9\uc758 \uc751\uc6a9<\/h2>\n

\uc54c\ud504\ubca4 \ud30c\ub3d9\uc740 \uc6b0\uc8fc \ubb3c\ub9ac\ud559 \ubd84\uc57c\uc5d0\uc11c \ud2b9\ud788 \uc911\uc694\ud569\ub2c8\ub2e4. \ud0dc\uc591 \ud48d\uc774\ub098 \uc6b0\uc8fc \ud50c\ub77c\uc988\ub9c8\uc640 \uac19\uc740 \ud658\uacbd\uc5d0\uc11c \uc774 \ud30c\ub3d9\uc740 \uc5d0\ub108\uc9c0\uc640 \uc815\ubcf4\ub97c \uad11\ub300\ud55c \uac70\ub9ac\uc5d0 \uac78\uccd0 \uc804\ub2ec\ud558\ub294\ub370 \ud575\uc2ec\uc801\uc778 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \ub610\ud55c, \uc54c\ud504\ubca4 \ud30c\ub3d9\uc740 \uc9c0\uad6c \uc790\uae30\uad8c\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \ub2e4\uc591\ud55c \ud604\uc0c1\uc744 \uc124\uba85\ud558\ub294 \ub370\uc5d0\ub3c4 \uc0ac\uc6a9\ub418\uba70, \uc774\ub97c \ud1b5\ud574 \uc6b0\uc8fc \ub0a0\uc528 \ud604\uc0c1\uc758 \uc608\uce21\uc5d0 \uae30\uc5ec\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\uacf5\ud559\uc801\uc73c\ub85c\ub294, \uc54c\ud504\ubca4 \ud30c\ub3d9\uc744 \uc774\uc6a9\ud558\uc5ec \ud50c\ub77c\uc988\ub9c8 \ubc18\uc751\uc744 \uc81c\uc5b4\ud558\ub294 \uc5f0\uad6c\ub3c4 \uc9c4\ud589\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ud50c\ub77c\uc988\ub9c8 \uc735\ud569 \ubc18\uc751\uc5d0\uc11c\ub294 \uc54c\ud504\ubca4 \ud30c\ub3d9\uc744 \ud65c\uc6a9\ud558\uc5ec \ud50c\ub77c\uc988\ub9c8\uc758 \uc548\uc815\uc131\uc744 \ub192\uc774\uace0 \uc5d0\ub108\uc9c0 \ud6a8\uc728\uc744 \uac1c\uc120\ud560 \uc218 \uc788\ub294 \ubc29\ubc95\uc774 \uc5f0\uad6c\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ucc98\ub7fc \uc54c\ud504\ubca4 \ud30c\ub3d9\uc740 \uc790\uc5f0 \ud604\uc0c1\uc758 \uc774\ud574\uc640 \uace0\ub3c4\uc758 \uae30\uc220 \uac1c\ubc1c \ubaa8\ub450\uc5d0\uc11c \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\uacb0\ub860<\/h2>\n

\uc54c\ud504\ubca4 \ud30c\ub3d9\uc740 \uc790\uae30\uc7a5\uacfc \ud50c\ub77c\uc988\ub9c8\uc758 \uc0c1\ud638\uc791\uc6a9\uc744 \uc774\ud574\ud558\uace0 \uc124\uba85\ud558\ub294 \ub370 \ud544\uc218\uc801\uc778 \uac1c\ub150\uc785\ub2c8\ub2e4. \uc774 \ud30c\ub3d9\uc744 \ud1b5\ud574 \uc6b0\ub9ac\ub294 \uc6b0\uc8fc\uc758 \ub2e4\uc591\ud55c \ud604\uc0c1\uc744 \ub354 \uc798 \uc774\ud574\ud558\uace0, \uace0\ub3c4\uc758 \uae30\uc220\uc801 \ubb38\uc81c\ub97c \ud574\uacb0\ud560 \uc218 \uc788\ub294 \ubc29\ubc95\uc744 \ubaa8\uc0c9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc54c\ud504\ubca4 \ud30c\ub3d9\uc758 \uc5f0\uad6c\ub294 \ubb3c\ub9ac\ud559\uc740 \ubb3c\ub860, \uacf5\ud559, \uc6b0\uc8fc \uacfc\ud559 \ub4f1 \uc5ec\ub7ec \ubd84\uc57c\uc5d0\uc11c \uc911\uc694\ud558\uac8c \ub2e4\ub8e8\uc5b4\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"

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