\ub9e5\uc2a4\uc6f0 \ubc29\uc815\uc2dd\uc740 \uc804\uc790\uae30\ud559\uc758 \uae30\ucd08\ub97c \uc774\ub8e8\ub294 \ub124 \uac00\uc9c0 \uae30\ubcf8\uc801\uc778 \ubc29\uc815\uc2dd\uc73c\ub85c, \uc804\uae30\uc640 \uc790\uae30\uc758 \uc0c1\ud638\uc791\uc6a9\uc744 \uc124\uba85\ud569\ub2c8\ub2e4. \uc774 \ubc29\uc815\uc2dd\ub4e4\uc740 \uc81c\uc784\uc2a4 \ud074\ub77d \ub9e5\uc2a4\uc6f0(James Clerk Maxwell)\uc5d0 \uc758\ud574 \uc815\ub9bd\ub418\uc5c8\uc73c\uba70, \uc804\uc790\uae30\ud30c \uc774\ub860\uc758 \uae30\ucd08\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc624\ub298\uc740 \uc774 \uc911\uc5d0\uc11c \ud328\ub7ec\ub370\uc774 \ubc95\uce59<\/strong>\uc5d0 \ub300\ud574 \uae4a\uc774 \uc788\ub294 \ubd84\uc11d\uc744 \uc9c4\ud589\ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n \ud328\ub7ec\ub370\uc774 \ubc95\uce59\uc740 \uc804\uc790\uae30 \uc720\ub3c4 \ud604\uc0c1\uc744 \uc124\uba85\ud558\ub294 \ubc95\uce59\uc73c\ub85c, \ubcc0\ud558\ub294 \uc790\uae30\uc7a5\uc774 \uc804\uae30\uc7a5\uc744 \uc0dd\uc131\ud55c\ub2e4\ub294 \ub0b4\uc6a9\uc744 \ub2f4\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ubc95\uce59\uc740 \ub2e4\uc74c\uacfc \uac19\uc774 \uc218\ud559\uc801\uc73c\ub85c \ud45c\ud604\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n \uc5ec\uae30\uc11c:<\/p>\n \ud328\ub7ec\ub370\uc774 \ubc95\uce59\uc740 \uc804\uc790\uae30 \uc720\ub3c4\uac00 \uc77c\uc5b4\ub098\ub294 \uae30\ubcf8\uc801\uc778 \uba54\ucee4\ub2c8\uc998\uc744 \uc81c\uc2dc\ud558\uba70, \uc774\ub294 \uc804\uae30 \ubc1c\uc804\uae30, \ubcc0\uc555\uae30 \ubc0f \ub2e4\uc591\ud55c \uc804\uc790\uae30 \uae30\uae30\uc758 \uc791\ub3d9 \uc6d0\ub9ac\uc640 \ubc00\uc811\ud55c \uad00\ub828\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n \ud328\ub7ec\ub370\uc774 \ubc95\uce59\uc758 \ubb3c\ub9ac\uc801 \uc758\ubbf8\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uc911\uc694\ud55c \ud3ec\uc778\ud2b8\ub85c \uc694\uc57d\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n \ud328\ub7ec\ub370\uc774 \ubc95\uce59\uc740 \ub2e4\uc74c\uacfc \uac19\uc740 \uacfc\uc815\uc744 \ud1b5\ud574 \uc720\ub3c4\ub429\ub2c8\ub2e4:<\/p>\n \ud328\ub7ec\ub370\uc774 \ubc95\uce59\uc740 \ub2e4\uc591\ud55c \uc804\uc790\uae30 \uae30\uae30\uc5d0\uc11c \uc751\uc6a9\ub429\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ubc1c\uc804\uae30\ub294 \uae30\uacc4\uc801\uc778 \uc5d0\ub108\uc9c0\ub97c \uc804\uae30 \uc5d0\ub108\uc9c0\ub85c \ubcc0\ud658\ud558\ub294 \uc7a5\uce58\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uacfc\uc815\uc740 \ud328\ub7ec\ub370\uc774 \ubc95\uce59\uc758 \uc6d0\ub9ac\uc5d0 \ub530\ub77c \uc791\ub3d9\ud569\ub2c8\ub2e4.<\/p>\n \uc0dd\uac01\ud574\ubd05\uc2dc\ub2e4. \uc6b0\ub9ac\uac00 \ucf54\uc77c\uc744 \ud68c\uc804\uc2dc\ud0ac \ub54c, \ucf54\uc77c \ub0b4\ubd80\ub97c \ud1b5\uacfc\ud558\ub294 \uc790\uae30\uc7a5\uc774 \ubcc0\ud558\uac8c \ub429\ub2c8\ub2e4. \uc774 \uacbd\uc6b0 \ud328\ub7ec\ub370\uc774 \ubc95\uce59\uc774 \uc5b4\ub5bb\uac8c \uc801\uc6a9\ub418\ub294\uc9c0 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n \ub80c\uce20\uc758 \ubc95\uce59\uc740 \uc720\ub3c4 \uc804\uc555\uc758 \ubc29\ud5a5\uc744 \uacb0\uc815\ud558\ub294 \ubc95\uce59\uc73c\ub85c, \uc790\uae30\uc120\uc18d\uc758 \ubcc0\ud654 \ubc29\ud5a5\uacfc \ub300\ud5a5\ub418\ub294 \ubc29\ud5a5\uc73c\ub85c \uc720\ub3c4 \uc804\uc555\uc774 \ubc1c\uc0dd\ud55c\ub2e4\uace0 \uc124\uba85\ud569\ub2c8\ub2e4. \uc774\ub294 \uc5d0\ub108\uc9c0 \ubcf4\uc874 \ubc95\uce59\uacfc\ub3c4 \ubc00\uc811\ud55c \uad00\uacc4\uac00 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n \ub80c\uce20\uc758 \ubc95\uce59\uc5d0 \uc758\ud574, \ud328\ub7ec\ub370\uc774 \ubc95\uce59\uc740 \ubbf8\ud558\uc5d8 \ud328\ub7ec\ub370\uc774\uc5d0 \uc758\ud574 1830\ub144\ub300\uc5d0 \ubc1c\uacac\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uadf8\uc758 \uc5f0\uad6c\ub294 \uc804\uc790\uae30\ud559\uc744 \ubc1c\uc804\uc2dc\ud0a4\ub294 \ub370 \ud070 \uae30\uc5ec\ub97c \ud558\uc600\uc73c\uba70, \uc804\uc2dc\uc2a4\ud15c\uacfc \ud604\ub300 \ubb3c\ub9ac\ud559\uc5d0 \uc9c0\ub300\ud55c \uc601\ud5a5\uc744 \ubbf8\ucce4\uc2b5\ub2c8\ub2e4.<\/p>\n \ud328\ub7ec\ub370\uc774 \ubc95\uce59\uc740 \uc804\uc790\uae30\ud559\uc758 \uae30\ubcf8\uc801\uc778 \uc6d0\ub9ac\ub97c \uc81c\uacf5\ud558\uba70, \uc804\uae30\uc640 \uc790\uae30\uac00 \uc11c\ub85c \uc5b4\ub5bb\uac8c \uc791\uc6a9\ud558\ub294\uc9c0\ub97c \uc774\ud574\ud558\ub294 \ub370 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubc95\uce59\ub4e4\uc740 \uc624\ub298\ub0a0 \uc6b0\ub9ac\uc758 \uc0dd\ud65c \uc18d\uc5d0\uc11c \ub2e4\uc591\ud558\uac8c \uc751\uc6a9\ub418\uba70, \uae30\uc220 \ubc1c\uc804\uc758 \uae30\ubc18\uc774 \ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc804\uc790\uae30\ud559\uc744 \uacf5\ubd80\ud558\ub294 \ud559\uc0dd\ub4e4\uc5d0\uac8c \ud328\ub7ec\ub370\uc774 \ubc95\uce59\uc740 \uc804\uae30, \uc790\uae30, \uc804\uc790\uae30\ud30c\uc758 \uc138\uacc4\ub97c \uc774\ud574\ud558\ub294 \uccab\uac78\uc74c\uc774 \ub420 \uac83\uc785\ub2c8\ub2e4.<\/p>\n <\/body><\/p>\n","protected":false},"excerpt":{"rendered":"\ud328\ub7ec\ub370\uc774 \ubc95\uce59\uc774\ub780?<\/h2>\n
\\[ \\mathcal{E} = -\\frac{d\\Phi_B}{dt} \\] <\/code><\/p>\n\n
\\mathcal{E}<\/code>\ub294 \uc720\ub3c4 \uc804\uc555 (emf)<\/li>\n\\Phi_B<\/code>\ub294 \uc790\uae30 \uc120\uc18d (magnetic flux)<\/li>\nd\\Phi_B\/dt<\/code>\ub294 \uc790\uae30 \uc120\uc18d\uc758 \uc2dc\uac04\uc5d0 \ub300\ud55c \ubbf8\ubd84<\/li>\n<\/ul>\n\ud328\ub7ec\ub370\uc774 \ubc95\uce59\uc758 \ubb3c\ub9ac\uc801 \uc758\ubbf8<\/h2>\n
\n
\ud328\ub7ec\ub370\uc774 \ubc95\uce59\uc758 \uc720\ub3c4<\/h2>\n
\n
\\Phi_B<\/code>\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \uc815\uc758\ub429\ub2c8\ub2e4:<\/li>\n \\[ \\Phi_B = \\int \\mathbf{B} \\cdot d\\mathbf{A} \\] <\/code><\/p>\n\\mathbf{B}<\/code>\ub294 \uc790\uae30\uc7a5 \ubca1\ud130, d\\mathbf{A}<\/code>\ub294 \uba74\uc801 \uc694\uc18c\uc785\ub2c8\ub2e4.<\/li>\nd\\Phi_B\/dt<\/code>\ub294 \ud328\ub7ec\ub370\uc774 \ubc95\uce59\uc758 \uae30\ubcf8 \uad00\uacc4\ub97c \ud615\uc131\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n\ud328\ub7ec\ub370\uc774 \ubc95\uce59\uc758 \uc751\uc6a9 \uc608\uc2dc<\/h2>\n
\uc608\uc81c: \uac04\ub2e8\ud55c \ubc1c\uc804\uae30<\/h3>\n
import numpy as np\nimport matplotlib.pyplot as plt\n\n# \uc0c1\uc218 \uc124\uc815\nN = 100 # \ucf54\uc77c\uc758 \uac10\uc740 \uc218\nA = 0.01 # \ucf54\uc77c\uc758 \uba74\uc801 (m\u00b2)\nB = 0.1 # \uc790\uae30\uc7a5 \uc138\uae30 (T)\nomega = 2 * np.pi * 1 # \uac01\uc18d\ub3c4 (rad\/s)\n\n# \uc2dc\uac04 \ubc30\uc5f4 \uc0dd\uc131\nt = np.linspace(0, 2, 1000)\n\n# \uc790\uae30 \uc120\uc18d \uacc4\uc0b0\nPhi_B = N * B * A * np.cos(omega * t)\n\n# \uc720\ub3c4 \uc804\uc555 \uacc4\uc0b0\nE = -np.diff(Phi_B) \/ np.diff(t)\n\n# \uadf8\ub798\ud504 \uadf8\ub9ac\uae30\nplt.figure(figsize=(10, 5))\nplt.subplot(2, 1, 1)\nplt.plot(t[:-1], E)\nplt.title(\"\uc720\ub3c4 \uc804\uc555\uc758 \uc2dc\uac04\uc5d0 \ub530\ub978 \ubcc0\ud654\")\nplt.xlabel(\"\uc2dc\uac04 (s)\")\nplt.ylabel(\"\uc720\ub3c4 \uc804\uc555 (V)\")\n\nplt.subplot(2, 1, 2)\nplt.plot(t, Phi_B)\nplt.title(\"\uc790\uae30 \uc120\uc18d\uc758 \uc2dc\uac04\uc5d0 \ub530\ub978 \ubcc0\ud654\")\nplt.xlabel(\"\uc2dc\uac04 (s)\")\nplt.ylabel(\"\uc790\uae30 \uc120\uc18d (Wb)\")\nplt.tight_layout()\nplt.show()<\/code><\/pre>\n<\/div>\n\ud328\ub7ec\ub370\uc774 \ubc95\uce59\uacfc \ub80c\uce20\uc758 \ubc95\uce59<\/h2>\n
\\[ \\mathcal{E} = -\\frac{d\\Phi_B}{dt} \\] <\/code><\/p>\n-d\\Phi_B\/dt<\/code>\uc758 \ubd80\ud638\ub294 \uc720\ub3c4 \uc804\uc555\uc774 \uc0dd\uc131\ud558\ub294 \uc804\ub958\uc758 \ubc29\ud5a5\uc774 \uc790\uae30\uc120\uc18d\uc758 \ubcc0\ud654\ub97c \uc800\ud56d\ud558\ub294 \ubc29\ud5a5\uc73c\ub85c \ud750\ub978\ub2e4\ub294 \uac83\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/p>\n\ud328\ub7ec\ub370\uc774 \ubc95\uce59\uc758 \uc5ed\uc0ac\uc801 \ubc30\uacbd<\/h2>\n
\uacb0\ub860<\/h2>\n