... Ω9D2/<7-=>q.M7Gqˆ¬Ž…!€—r!3N7G-i+3[7GBE7G/v/.I/-9\r5+Q@.I/TI21@=@./012/0:F:-w-!„o2/0:†ono‡¬sqnrnrˆ¬s)€noq@†)€nš.†oKqKrnš18&GIÁO ÁN VẬT LÍ 9 !"#$!%&NĂM HỌC 2007-20081r+,/2A!=17G-+i5K_/;7-=]€*!]:+/01K-F:-w-2Z.I/KT|ON2u:X5+2/<7’7R15F†+C7-L5+:X5+2/<7K-]:5,55c7G-+f55F8/;7Y1@72R75,52X/8347G5U7-]:97Bd7G7+Q7G5c7G-+f52™+•520G/v/.I/-H,7{/0:-=@K./<78197_R-Y1v$ƒ•ƒŽo!—"{ž”°% ... d=TIOHO,7+T[/-hOPoqRR-+12345-~.v7Go•/o7+w58X/_R-8197TZ:P/Y1@7+<G/Q@TIœ97Bd7G]7+Šr!,5.3[5-/R7+I7+!p'w5:X5+2/<7-+lHON2up+@D5,52/<7-=>23458I:-~5‘7G:A-8@•/T9-8/<1K5‘7G5+/Z1BI/K-/R-B/<7_+,57+@1pHG/,-=6KœL7+pHO,7+T[/Bi2H,720=›-=@7+97J¡-Y1@_R-Y1v/R7+I7+!{R-Y1v!+97J¡-!\Bd7G5c7G-+f5-L7+B/<7-L5++]7+-=W723Ngày soạn:4/9/2007.Ngày giảng:6/9 lớp 9C; 07/9 lớp 9E. Tiết 1:CHƯƠNG I: ĐIỆN HỌC.' ()*!Kin th#c:-+,-./012345267+819-:;123452/<7-=>5?@:A-BCDBE75FG/,-=6+HI7-HI7J,5267+K2345-L7+.M7G-+3N7GOPG/Q+/<12/<7-+R2S-TIH+@/2U1BCDBE7TI53V7G2ABW7G2/<75+XDY1@7F+97./R-23452N7T65?@2/<7-=>;123452S52/0:TZ53V7G2ABW7G2/<7KTZ+/<12/<7-+RTI2/<7-=>-3N7G23N7G2P/T[/2HX7:X5+7P/-/R\TI2HX7:X5+OH7GOH7G;12345:P/Y1@7+<G/Q@2/<7-=>5?@BCDBE7T[/5+/Z1BI/K-/R-B/<7TIT9-8/<18I:BCDBE7;12345./R7-=>8IG]TI5,5B^1+/<17+97./R-2/<7-=>-=H7G_`-+19-;12345a7G+b@5,5-=6OPTc7TIH,-G+/-=;7-+/R-.6-/;1-+d2/<77e7G/R-23455,55c7G-+f5-L7+5c7GO1^-2/<7TI2/<77e7G-/;1-+d5?@:A-2HX7:X5+;12345:A-OPB^1+/<15+f7G-gBW7G2/<75F7e7G8347G+h=@2345Oi5+1D07+F@5,5BX7G7e7G8347G_+/2j72/<7K.R\2/<7K.I78IK7@:5+C:2/<7K2c7G5N2/<7+HX-2A7GK% ... oqrHO,7+23452/;7-=>-3N7G23N7G5?@2HX7:X5+7P/-/R\+HS5OH7GOH7GT[/:t/2/<7-=>-+I7+\+U797Bd7G2345267+819-:5+H2HX7:X5+Gu:7+/Z17+^-.@2/<7-=>-+I7+\+U7k,5267+2345.M7G-+i57G+/<::P/Y1@7+<G/Q2/<7-=>5?@BCDBE7T[/5+/Z1BI/K-/R-B/<7TIT[/T9-8/<18I:BCDBE797Bd7G23455c7G-+f5nmSl20-L7+:t/2X/8347G_+/./R-5,52X/8347G5W78X/TIG/v/-+L5+23455,5+/<7-347G2N7G/v78/;7Y1@72R72/<7-=>5?@BCDBE7/v/-+L5+23457G1D;7-w5+HX-2A7G5?@./R7-=>5H75+XDxBd7G2345./R7-=>202/Z15+h7+53V7G2ABW7G2/<7-=H7G:X5+2Ngày soạn:30/9/2007.Ngày giảng:5/10/2007. Tiết 9:SỰ PHỤ THUỘC CỦA ĐIỆN TRỞ VÀO VẬT LIỆU LÀMDÂY DẪN.)' !o{/R7-+f5!€P-=LTI-/R7+I7+_/0:-=@5+f7G-g=M7G2/<7-=>5?@5,5BCDBE75F5‘7G5+/Z1BI/K-/R-B/<7TI23458I:-~5,5T9-8/<1_+,57+@1-+]_+,57+@1HO,7+2345:f52ABE72/<75?@5,55+^-+@D5,5T9-8/<15e75fTIH.v7GG/,-=62/<7-=>O1^-5?@5+›7G97Bd7G5c7G-+f5lRSρ=20-L7+2345:A-2X/8347G_+/./R-5,52X/8347G5W78X/q{b7e7G!'w5:X5+2/<7TIOxBd7GBd7G5d2H202H2/<7-=>5?@BCDBE7xBd7G.v7G2/<7-=>O1^-5?@:A-OP5+^-r+,/2A!=17G-+i5K5F-/7+-+U7+4\-,5-=H7G+HX-2A7G7+F:€•‚ƒP/T[/:t/7+F:!@/BCDBE7_+,57+@15Fo...