{"id":2844,"date":"2022-01-22T17:06:46","date_gmt":"2022-01-22T17:06:46","guid":{"rendered":"https:\/\/stage-wp.10minuteschool.com\/?p=2844"},"modified":"2022-03-24T11:14:04","modified_gmt":"2022-03-24T11:14:04","slug":"drift-velocity","status":"publish","type":"post","link":"https:\/\/10minuteschool.com\/content\/drift-velocity\/","title":{"rendered":"\u09a4\u09be\u09dc\u09a8 \u09ac\u09c7\u0997 (Drift Velocity)"},"content":{"rendered":"\r\n

\u09a4\u09be\u09a1\u09bc\u09a8 \u09ac\u09c7\u0997 <\/b>(Drift velocity) :<\/b><\/h2>\r\n\r\n\r\n\r\n

\u09ae\u09c1\u0995\u09cd\u09a4 \u0987\u09b2\u09c7\u0995\u099f\u09cd\u09b0\u09a8\u09b8\u09ae\u09c2\u09b9 (Free Electrons) \u09a7\u09be\u09a4\u09ac \u09a4\u09be\u09b0\u09c7\u09b0 \u09ae\u09a7\u09cd\u09af \u09a6\u09bf\u09af\u09bc\u09c7 \u09a4\u09a1\u09bc\u09bf\u09ce \u09aa\u09cd\u09b0\u09ac\u09be\u09b9\u09c7\u09b0 \u09b8\u09ae\u09af\u09bc \u09af\u09c7 \u09ac\u09c7\u0997\u09c7 \u099a\u09b2\u09c7 \u09a4\u09be\u0995\u09c7 \u09ae\u09c1\u0995\u09cd\u09a4 \u0987\u09b2\u09c7\u0995\u099f\u09cd\u09b0\u09a8\u09c7\u09b0 \u09a4\u09be\u09a1\u09bc\u09a8 \u09ac\u09c7\u0997 (Drift Velocity) \u09ac\u09b2\u09c7\u0964 \u0985\u09a8\u09c7\u0995 \u09b8\u09ae\u09af\u09bc \u098f\u0987 \u09ac\u09c7\u0997\u0995\u09c7 \u09a4\u09be\u09a1\u09bc\u09a8 \u09a6\u09cd\u09b0\u09c1\u09a4\u09bf (drift speed)-\u0993 \u09ac\u09b2\u09be \u09b9\u09af\u09bc\u0964\u00a0<\/strong><\/p>\r\n\r\n\r\n\r\n

\u201c\u09ac\u09bf\u09a6\u09cd\u09af\u09c1\u09ce \u09aa\u09cd\u09b0\u09ac\u09be\u09b9\u09c7\u09b0 \u09b8\u09ae\u09af\u09bc \u09af\u09c7 \u09ac\u09c7\u0997\u09c7 \u0987\u09b2\u09c7\u0995\u099f\u09cd\u09b0\u09a8 \u09a8\u09bf\u09ae\u09cd\u09a8 \u09ac\u09bf\u09ad\u09ac \u09a5\u09c7\u0995\u09c7 \u0989\u099a\u09cd\u099a \u09ac\u09bf\u09ad\u09ac \u09aa\u09cd\u09b0\u09be\u09a8\u09cd\u09a4\u09c7\u09b0 \u09a6\u09bf\u0995\u09c7 \u09a7\u09be\u09ac\u09bf\u09a4 \u09b9\u09af\u09bc \u09a4\u09be\u0995\u09c7 \u0987\u09b2\u09c7\u0995\u099f\u09cd\u09b0\u09a8\u09c7\u09b0 \u09a4\u09be\u09a1\u09bc\u09a8 \u09ac\u09c7\u0997 (Drift Velocity)<\/strong> \u09ac\u09b2\u09c7\u0964<\/span><\/p>\r\n\r\n\r\n\r\n

\u09ac\u09bf\u09a6\u09cd\u09af\u09c1\u09ce \u09aa\u09cd\u09b0\u09ac\u09be\u09b9 \u0993 \u09a4\u09be\u09a1\u09bc\u09a8 \u09ac\u09c7\u0997\u09c7\u09b0 \u09b8\u09ae\u09cd\u09aa\u09b0\u09cd\u0995 (<\/b>Relation between current and drift velocity)<\/b><\/h2>\r\n\r\n\r\n\r\n

\u09a7\u09b0\u09be \u09af\u09be\u0995 AB \u098f\u0995\u099f\u09bf \u09a7\u09be\u09a4\u09ac \u09aa\u09b0\u09bf\u09ac\u09be\u09b9\u09c0 \u09af\u09be\u09b0 \u09ae\u09a7\u09cd\u09af \u09a6\u09bf\u09df\u09c7 \u09ac\u09bf\u09a6\u09cd\u09af\u09c1\u09ce \u09aa\u09cd\u09b0\u09ac\u09be\u09b9\u09bf\u09a4 \u09b9\u099a\u09cd\u099b\u09c7\u0964\u00a0<\/span><\/p>\r\n\r\n\r\n\r\n

\r\n
\"relationship<\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n

\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf, \u0987\u09b2\u09c7\u0995\u099f\u09cd\u09b0\u09a8\u09c7\u09b0 \u09a4\u09be\u09a1\u09bc\u09a8 \u09ac\u09c7\u0997 =v<\/span><\/span><\/p>\r\n\r\n\r\n\r\n

\u098f\u0995\u0995 \u0986\u09af\u09bc\u09a4\u09a8\u09c7 \u09ae\u09c1\u0995\u09cd\u09a4 \u0987\u09b2\u09c7\u0995\u099f\u09cd\u09b0\u09a8\u09c7\u09b0 \u09b8\u0982\u0996\u09cd\u09af\u09be=n<\/span><\/span><\/p>\r\n\r\n\r\n\r\n

\u09aa\u09b0\u09bf\u09ac\u09be\u09b9\u09c0\u09b0 \u09aa\u09cd\u09b0\u09a5\u099a\u09cd\u099b\u09c7\u09a6\u09c7\u09b0 \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09ab\u09b2=A<\/span><\/span><\/p>\r\n\r\n\r\n\r\n

\u09aa\u09cd\u09b0\u09a4\u09bf\u099f\u09bf \u09ae\u09c1\u0995\u09cd\u09a4 \u0987\u09b2\u09c7\u0995\u099f\u09cd\u09b0\u09a8\u09c7\u09b0 \u099a\u09be\u09b0\u09cd\u099c =e<\/span><\/span><\/p>\r\n\r\n\r\n\r\n

\u09aa\u09b0\u09bf\u09ac\u09be\u09b9\u09c0\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 \u09ac\u09bf\u09a6\u09cd\u09af\u09c1\u09ce \u09aa\u09cd\u09b0\u09ac\u09be\u09b9 =I<\/span><\/span>\u00a0<\/span><\/p>\r\n\r\n\r\n\r\n

\u098f\u0996\u09a8, d t<\/span><\/span> \u09b8\u09ae\u09af\u09bc\u09c7 \u0987\u09b2\u09c7\u0995\u099f\u09cd\u09b0\u09a8 \u0995\u09b0\u09cd\u09a4\u09c3\u0995 \u0985\u09a4\u09bf\u0995\u09cd\u09b0\u09be\u09a8\u09cd\u09a4 \u09a6\u09c2\u09b0\u09a4\u09cd\u09ac, l=v t<\/span><\/span>\u00a0<\/span><\/p>\r\n\r\n\r\n\r\n

\u09b8\u09c1\u09a4\u09b0\u09be\u0982, d t<\/span><\/span> \u09b8\u09ae\u09af\u09bc\u09c7 \u09aa\u09b0\u09bf\u09ac\u09be\u09b9\u09c0\u09b0 \u0995\u09cb\u09a8\u09cb \u09aa\u09cd\u09b0\u09a5\u099a\u09cd\u099b\u09c7\u09a6\u09c7\u09b0 \u09ae\u09a7\u09cd\u09af \u09a6\u09bf\u09af\u09bc\u09c7 \u0985\u09a4\u09bf\u0995\u09cd\u09b0\u09be\u09a8\u09cd\u09a4 \u09ae\u09c1\u0995\u09cd\u09a4 \u0987\u09b2\u09c7\u0995\u099f\u09cd\u09b0\u09a8\u09c7\u09b0 (Free Electron) \u09b8\u0982\u0996\u09cd\u09af\u09be N=n V=n A l=n A v d t<\/span><\/span><\/p>\r\n\r\n\r\n\r\n

V<\/span> \u09b9\u09b2\u09cb d t<\/span><\/span> \u09b8\u09ae\u09af\u09bc\u09c7 \u09aa\u09b0\u09bf\u09ac\u09be\u09b9\u09c0\u09b0 \u0985\u09a4\u09bf\u0995\u09cd\u09b0\u09be\u09a8\u09cd\u09a4 \u09a6\u09c2\u09b0\u09a4\u09cd\u09ac l<\/span> \u0985\u0982\u09b6\u09c7\u09b0 \u0986\u09af\u09bc\u09a4\u09a8\u00a0<\/span><\/p>\r\n\r\n\r\n\r\n

\\therefore d t<\/span><\/span> \u09b8\u09ae\u09af\u09bc\u09c7 \u09aa\u09cd\u09b0\u09ac\u09be\u09b9\u09bf\u09a4 \u099a\u09be\u09b0\u09cd\u099c\u09c7\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 d q=e N=e n A v d t<\/span><\/span><\/p>\r\n\r\n\r\n\r\n

\u0986\u09ae\u09b0\u09be \u099c\u09be\u09a8\u09bf, \u09ac\u09bf\u09a6\u09cd\u09af\u09c1\u09ce \u09aa\u09cd\u09b0\u09ac\u09be\u09b9, I=\\frac{d q}{d t}=\\frac{e n A v d t}{d t}=n A v e<\/span><\/span>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u2026.\u00a0 \u00a0 \u00a0 \u2026. \u00a0 \u00a0 \u00a0 … \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 (3.6)\u00a0<\/span><\/p>\r\n\r\n\r\n\r\n

v=\\frac{\\mathrm{I}}{n A e}<\/span>\u00a0 \u00a0 \u00a0 \u00a0\u2026. \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u2026.\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 … \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 3.6(a)\u00a0<\/span><\/p>\r\n\r\n\r\n\r\n

\u09b8\u09ae\u09c0\u0995\u09b0\u09a3 (3.6) \u09b9\u09b2\u09cb \u09ac\u09bf\u09a6\u09cd\u09af\u09c1\u09ce \u09aa\u09cd\u09b0\u09ac\u09be\u09b9 \u098f\u09ac\u0982 \u09a4\u09be\u09a1\u09bc\u09a8 \u09ac\u09c7\u0997 (Drift Velocity) \u09b8\u09ae\u09cd\u09aa\u09b0\u09cd\u0995\u09c0\u09af\u09bc \u09b0\u09be\u09b6\u09bf\u09ae\u09be\u09b2\u09be\u0964\u00a0<\/span><\/p>\r\n\r\n\r\n\r\n

\u09aa\u09cd\u09b0\u09ac\u09be\u09b9 \u0998\u09a8\u09a4\u09cd\u09ac \u0993 \u09a4\u09be\u09a1\u09bc\u09a8 \u09ac\u09c7\u0997\u09c7\u09b0 \u09b8\u09ae\u09cd\u09aa\u09b0\u09cd\u0995 (<\/b>Relation between current density and drift velocity)<\/b><\/h2>\r\n\r\n\r\n\r\n

\u0995\u09cb\u09a8\u09cb \u09aa\u09b0\u09bf\u09ac\u09be\u09b9\u09c0\u09b0 \u09aa\u09cd\u09b0\u09b8\u09cd\u09a5\u099a\u09cd\u099b\u09c7\u09a6\u09c7\u09b0 \u098f\u0995\u0995 \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09ab\u09b2 \u09a6\u09bf\u09af\u09bc\u09c7 \u09aa\u09cd\u09b0\u09ac\u09be\u09b9\u09bf\u09a4 \u09ac\u09bf\u09a6\u09cd\u09af\u09c1\u09ce \u09aa\u09cd\u09b0\u09ac\u09be\u09b9\u0995\u09c7 \u09aa\u09cd\u09b0\u09ac\u09be\u09b9 \u0998\u09a8\u09a4\u09cd\u09ac (Current Density)<\/strong> \u09ac\u09b2\u09c7\u0964 \u098f\u0995\u09c7 \\vec{\\jmath}<\/span><\/span> \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u09aa\u09cd\u09b0\u0995\u09be\u09b6 \u0995\u09b0\u09be \u09b9\u09af\u09bc\u0964 \\vec{\\jmath}<\/span><\/span> \u098f\u0995\u099f\u09bf \u09ad\u09c7\u0995\u09cd\u099f\u09b0 \u09b0\u09be\u09b6\u09bf\u0964 \\vec{\\jmath}<\/span><\/span> \u098f\u09b0 \u09a6\u09bf\u0995 \u09b9\u09ac\u09c7 \u09ac\u09bf\u09a6\u09cd\u09af\u09c1\u09ce \u09aa\u09cd\u09b0\u09be\u09ac\u09b2\u09cd\u09af\u09c7\u09b0 \u09a6\u09bf\u0995 \u09ac\u09b0\u09be\u09ac\u09b0\u0964 \u0985\u09b0\u09cd\u09a5\u09be\u09ce \u09ac\u09bf\u09a6\u09cd\u09af\u09c1\u09ce \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 \u098f\u0995\u099f\u09bf \u09a7\u09a8\u09be\u09a4\u09cd\u09ae\u0995 \u099a\u09be\u09b0\u09cd\u099c\u09c7\u09b0 \u09b8\u099e\u09cd\u099a\u09be\u09b2\u09a8 \u09aa\u09a5\u0987 \u098f\u09b0 \u09a6\u09bf\u0995\u0964<\/span><\/p>\r\n\r\n\r\n\r\n

\u09ac\u09cd\u09af\u09be\u0996\u09cd\u09af\u09be (Explnation):<\/b><\/p>\r\n\r\n\r\n\r\n

\u099a\u09bf\u09a4\u09cd\u09b0-\u098f RS \u098f\u0995\u099f\u09bf \u09b8\u09c1\u09b7\u09ae \u09aa\u09cd\u09b0\u09a5\u099a\u09cd\u099b\u09c7\u09a6\u09c7\u09b0 \u09aa\u09b0\u09bf\u09ac\u09be\u09b9\u09c0\u0964 \\mathrm{A}<\/span> \u09b9\u09b2\u09cb \u098f\u09b0 \u09aa\u09cd\u09b0\u09a5\u099a\u09cd\u099b\u09c7\u09a6\u09c7\u09b0 \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09ab\u09b2\u0964 \u09ae\u09a8\u09c7 \u0995\u09b0\u09bf \u09aa\u09b0\u09bf\u09ac\u09be\u09b9\u09c0\u09b0 \u09ae\u09a7\u09cd\u09af \u09a6\u09bf\u09af\u09bc\u09c7 \u09aa\u09cd\u09b0\u09b8\u09cd\u09a5\u099a\u09cd\u099b\u09c7\u09a6\u09c7\u09b0 \u0985\u09ad\u09bf\u09b2\u09ae\u09cd\u09ac \u09ac\u09b0\u09be\u09ac\u09b0 \u09ac\u09bf\u09a6\u09cd\u09af\u09c1\u09ce \u09aa\u09cd\u09b0\u09ac\u09be\u09b9 \\mathrm{I}<\/span>\u0964 \u09b8\u09c1\u09a4\u09b0\u09be\u0982 \u09b8\u0982\u099c\u09cd\u099e\u09be\u09a8\u09c1\u09b8\u09be\u09b0\u09c7 \u09aa\u09cd\u09b0\u09ac\u09be\u09b9 \u0998\u09a8\u09a4\u09cd\u09ac \\mathrm{j}<\/span>-\u098f\u09b0 \u09ae\u09be\u09a8 \u09b9\u09ac\u09c7,<\/span><\/p>\r\n\r\n\r\n\r\n

j=\\frac{I}{A}<\/span><\/span><\/p>\r\n\r\n\r\n\r\n

\u09ac\u09be, I=jA<\/span><\/span><\/p>\r\n\r\n\r\n\r\n

\u098f\u09b8. \u0986\u0987. (SI) \u098f\u0995\u0995\u09c7 \\mathrm{j}<\/span>-\u098f\u09b0 \u098f\u0995\u0995 \\mathrm{Am}^{-2}<\/span><\/span>\u00a0<\/span><\/p>\r\n\r\n\r\n\r\n

\u09b8\u09ae\u09c0\u0995\u09b0\u09a3 3.6(a) \u0985\u09a8\u09c1\u09b8\u09be\u09b0\u09c7<\/span><\/p>\r\n\r\n\r\n\r\n

v=\\frac{I}{n e A}=\\frac{jA}{n e A}==\\frac{j}{n e}<\/span><\/span>\u00a0 \u00a0 \u00a0\u2026. \u00a0 \u00a0 \u00a0 \u00a0 \u2026. \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 … \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 (3.9)\u00a0<\/span><\/p>\r\n\r\n\r\n\r\n

\u09b8\u09ae\u09c0\u0995\u09b0\u09a3 (3.9) \u09a4\u09be\u09a1\u09bc\u09a8 \u09ac\u09c7\u0997 (Drift Velocity) \u0993 \u09aa\u09cd\u09b0\u09ac\u09be\u09b9 \u0998\u09a8\u09a4\u09cd\u09ac\u09c7\u09b0 (Current Density)\u00a0 \u09ae\u09a7\u09cd\u09af\u09c7 \u09b8\u09ae\u09cd\u09aa\u09b0\u09cd\u0995 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6 \u0995\u09b0\u09c7\u0964\u00a0<\/span><\/p>\r\n","protected":false},"excerpt":{"rendered":"

\u09a4\u09be\u09a1\u09bc\u09a8 \u09ac\u09c7\u0997 (Drift velocity) : \u09ae\u09c1\u0995\u09cd\u09a4 \u0987\u09b2\u09c7\u0995\u099f\u09cd\u09b0\u09a8\u09b8\u09ae\u09c2\u09b9 (Free Electrons) \u09a7\u09be\u09a4\u09ac \u09a4\u09be\u09b0\u09c7\u09b0 \u09ae\u09a7\u09cd\u09af \u09a6\u09bf\u09af\u09bc\u09c7 \u09a4\u09a1\u09bc\u09bf\u09ce \u09aa\u09cd\u09b0\u09ac\u09be\u09b9\u09c7\u09b0 \u09b8\u09ae\u09af\u09bc \u09af\u09c7 \u09ac\u09c7\u0997\u09c7 \u099a\u09b2\u09c7 \u09a4\u09be\u0995\u09c7 \u09ae\u09c1\u0995\u09cd\u09a4 \u0987\u09b2\u09c7\u0995\u099f\u09cd\u09b0\u09a8\u09c7\u09b0 \u09a4\u09be\u09a1\u09bc\u09a8 \u09ac\u09c7\u0997 (Drift Velocity) \u09ac\u09b2\u09c7\u0964 \u0985\u09a8\u09c7\u0995 \u09b8\u09ae\u09af\u09bc \u098f\u0987 \u09ac\u09c7\u0997\u0995\u09c7 \u09a4\u09be\u09a1\u09bc\u09a8 \u09a6\u09cd\u09b0\u09c1\u09a4\u09bf (drift speed)-\u0993 \u09ac\u09b2\u09be \u09b9\u09af\u09bc\u0964\u00a0 \u201c\u09ac\u09bf\u09a6\u09cd\u09af\u09c1\u09ce \u09aa\u09cd\u09b0\u09ac\u09be\u09b9\u09c7\u09b0 \u09b8\u09ae\u09af\u09bc<\/p>\n

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