ĐẠI HỌC SƯ PHẠM HÀ NỘI DẠNG 1: ĐẠI CƯƠNG VỀ DAO ĐỘNG ĐIỆN TỪ 1. LCQ 0 0 !"# $%&'π( ) ) % *%&'π( ) + )% ,%&'π ) +( ) % -%&'π.,% 2. /.,012"34"5%6789 8:;<2=>?%@485=AB=C $%DEF8GEF% *%DEF82<2=>?% ,%DEF82<2=>'?% -%DEF8GEF% 3. 2=>0H.,012"34"5FI4 J8185KL $% LC π ω M = % *% LC M = ω % ,% LC π ω ' M = % -% LC π ω ' = % 4. /.,N0,AB2909.% *ABO012"34"50%PQR ) S ) 2 FH %*5K=AB"3T985KEFC $% ' ) ' LI W = % *% L q W ' ' ) = % ,% ' ) ' CU W = % -% C q W ' ' ) = % 5. @485=AB="0:EFH.,012 "34"5C $%DEFH8GEF1% *%DEFEFU82;2=>% ,%DEFH8V2;% -%DEFH8GEF19% 6. LCH8:<"#T%DEF 1L $%8:<"#'T *%"38:; ,%8:<"#T/' -%8:<"#T 7. /N0AB.29,2"4%DQ ) S ) 72< ) C 6WBQ"(9X7"(9=ABL $% C L IU π )) = % *% L CI U ) ) = % ,% C LI U ) ) = % -% C L IU )) = % 8. ,3KEFH., $% C I W ' ' ) = % *% C q W ' ' ) = % ,% C q W ' ) = % -% LIW + ' ) = % 9. 0Y5=ABC $%2=>Z<% *%,Z<% ,%DEFZ<% -%,"!Z<% 10. .,0128G"3! $%DEF[T18<"!8G\"! H% *%DEF[T198<"!8G"!H% Gv: Trần Quang Thuận Tel: 0912.676.613 – 091.5657.952 M ĐẠI HỌC SƯ PHẠM HÀ NỘI ,%DEF[T18<"!8G\"!H% -%DEF[T198<"!8G"!H% 11. /.,NAB2909."3V0 ,BVF%*1HABO"34"50 %]04J, M !2=>H? M %]04J , ' &^, M !2=>L $%? ' &^? M% *%? ' &? M +'% ,%? ' &'? M% -%? ' &? M +^% 12. /.,F'89( ) ) %DUBQ=04B! 8<=008_F8G3KL $%`&'π )) Iq % *%`&'π( ) + ) % ,%`&'π ) +( ) % -%`&'π( ) ) % 13. .,0<2=>M/6a5&)EF 04J%_Z"55825EF 8G\4JH0L $%)b%M) cd =% *%M) cd =% ,%'%M) cd =% -%)M'b%M) cd = 14. .,898;Te! f% ' =g ) π ω −= tqq D[BL $%45+^h+^0<:F *%45+'0<:F% ,%45+^h+^0<:% -%45+'0<: 15. iH.,8;Te!(&( =g ' T π j π f% 5&+^0L $%67898G)% *%-(AB8G)% ,%iH% -%DEF% 16. .,k1Q 72AB50 ) %6K 85l>7 ) L $% ( ) ''' ) u C L iI =+ % *% ( ) ''' ) u L C iI =− % ,% ( ) ''' ) u C L iI =− % -% ( ) ''' ) u L C iI =+ % 17. .,H8:<4J8G( ) %iH "EFZTh2EF $%(& ) R h ± % *%(& ) R ^ ± % ,%(& ) R ' ' ± % -%(& ) R ' ± % 18. /.,0.&'6,&mTnZB ' π &M)%X8_2T0 X0EF8G82EFL $%'%M) co =% *%M) co =% ,% b M) ob s − % -% d M) Mb s − % 19. .,012"34"5"#H&M) cd = "9_Z5EF8GEF $%'b%M) cb =% *%M) cd =% ,%b%M) co =% -%'b%M) co =% Gv: Trần Quang Thuận Tel: 0912.676.613 – 091.5657.952 ' ĐẠI HỌC SƯ PHẠM HÀ NỘI DẠNG 2: XÁC ĐỊNH CHU KÌ, TẦN SỐ VÀ BƯỚC SÓNG 1. 2=>H.,EZT3"L $%iEZT3% *%i9HABEZT3% ,%i9M\% -%,"!9\% 2. =03B:pH,&M+^)))πgnf9 HAB.&Md+πg6f%]0=0F02=>8C.ZBπ ' &M)% $%M))6a% *%'b6a% ,%b)6a% -%'))6a% 3. /8_H4B3BN9.&'µ6 Mm)), ) = Tn%D005F=03B<8<=0L $%MMh% *%d'm% ,%MhM% -%MMh% 4. ]<,AB09.%DF 89( ) &M) qd ," ) &M)$%*<=0 \1<"04JL $%Mmm% *%Mmm^% ,%Md)% -%Mm% 5. />E2=>.,ZT^2!L $%E,ZT^2% *%99. Md L % ,%99. ^ L % -%99. ' L % 6. / mFC ')= %i502=>b))6a!=>9.T904J 8G8C.ZB M) ' = π % $%M6% *%)b6% ,%)^6% -%)h6% 7. /.,N909 HL π M = 0,% 2=>HM/6a%P4JH,8GL $% pFC π ^ M = % *% FC π ^ M = % ,% mFC π ^ M = % -% FC µ π ^ M = % 8. /.,10%*H89 0<M) cm ,(92d'm$%2=> H $%'b%M) h "6a% *%h%M) h "6a% ,%'%M) h "6a% -%M) h "6a% 9. /.,NAB2909"3V0 BVF%i1HABO"34"50%] 04J, M !2=>H? M %]04J, ' &^, M !2 => $%? ' &)'b? M % *%? ' &'? M % ,%? ' &)b? M % -%? ' &^? M % 10. /.,NAB2909.&'60 ,&)'µn%*ABO012"34"50% ,"! $%d'm%M) c^ =% *%M'bo%M) c^ =% ,%d'm%M) cb =% -%M'bo%M) cb =% 11. /.,1N9209"3V0 ,BV%],&, M !2=>Hob/6a",&, ' !2=> HM)/6a%D,&, M j, ' !2=>H $%M'b/6a% *%'b/6a% ,%Mob/6a% -%d)/6a% 12. /.,1N929.0 BVF, M , ' %/B0"!BVF% $% M ^ LC π ' ^ LC π % *% M ' LC π ' ' LC π % ,% M ' LC ' ' LC % -% M ^ LC ' ^ LC % Gv: Trần Quang Thuận Tel: 0912.676.613 – 091.5657.952 h ĐẠI HỌC SƯ PHẠM HÀ NỘI 13. /N909.&M60 ,&)Mµn%2=>H04J=ABC $%Md%M) ^ 6a% *%h'%M) ^ 6a% ,%Md%M) h 6a% -%h'%M) h 6a% 14. /.,1N9209M60 )Mµn%-H02=>0 $%h%M) b +=% *%'%M) b +=% ,%M) b +=% -%^%M) b +=% 15. .,012"34"5K=7"98G )'b%M) c^ =!EF8GEF%,"!H $%M) c^ =% *%)'b%M) c^ =% ,%)b%M) c^ = -%'%M) c^ = 16. /F9., M , ' %]U., M !0 2=>? M &h/6a%]U., ' !02=>? ' &^/6a%]U., M , ' _>T!2=>HL $%o/6a% *%b/6a% ,%hb/6a% -%'^/6a% 17. /F9., M , ' %]U., M !0 2=>? M &h/6a%]U., ' !02=>? ' &^/6a%]U., M , ' _==!2=>H $%o/6a% *%b/6a% ,%hb/6a% -%'^/6a DẠNG 3: XÁC ĐỊNH CƯỜNG ĐỘ DÒNG ĐIỆN VÀ HIỆU ĐIỆN THẾ 1. /N')n9m µ 61"34"5%6 12S ) &Mbr%B(% $%^h$% *%oh$% ,%bh$% -%dh$% 2. .,"30120gf% 6789(2FS ) ) % 504J ) +'!<789 $%hS ) +^% *% h S ) +' ,%S ) +'% -% h S ) +^ 3. /.,10.&^)6,&'bsnH( ) &d%M) cM) ,%] H8Gh%M) cM) ,!0<% $%b%M) co $% *%d%M) co $% ,%h%M) co $% -%'%M) co $% 4. /N0 FC µ b)= AB09.&b6%i4T dr%,54T8G^rL $%)h'$% *%)'b$% ,%)d)$% -%)^b$% 5. ,K.,1&))m=g')))fg$f%,AB 09.&b)6%67895K 8G%L $% '' r% *%h'r% ,% '^ r% -%mr% 6. ].,0%67'89S &'r% 5EF8G'2EF!7'89 $%)br% *% ' h r% ,%Mr% -%Mdhr% 7. /N')n9 m) H µ 1"34"5%6 12S ) &Mbr%B(% $%oh$% *%^h$% ,%Mdt$% -%bh$% 8. ]g,&M)µnu.&)M6f%5 , &^r!&))'$%, "8GL $%^b%M) q' $% *%^^o%M) q' $% ,%'%M) q^ $% -%')%M) q^ $% Gv: Trần Quang Thuận Tel: 0912.676.613 – 091.5657.952 ^ ĐẠI HỌC SƯ PHẠM HÀ NỘI 9. /AB290=>9)b60 )bn%0:%]M$!4T 2Mr%])$!4T2L $%'r% *% ' r% ,% '' r% -%^r% 10. 582H.,0J( ) &M) cm ,% 5T0' µ =%,L $%omb$% *%omb'$% ,%bbb$% -%Mbo'$% 11. ,K.,0&))'=')))g$f% 0bsn%i9H9 $%.&b)6% *%.&b%M) d − 6% ,%.&b%M) m − 6% -%.&b)6% 12. /.,N0,&mnAB290 9.&'6%*dr%]8Gd$! 7'2928GL $%^r% *%b'r% ,%hdr% -%hr% 13. .,0gf<2=>0M) ^ +=%i M) ct ,%]8Gd%M) cd $! $%m%M) cM) ,% *%^%M) cM) ,% ,%'%M) cM) ,% -%d%M) cM) ,% 14. /.,0 ω &M) o +=H( ) &^%M) cM' ,%]H (&'%M) cM' ,!04JL $% b '%M) A − % *% b ' h%M) A − % ,% b '%M) A − % -% b ' '%M) A − % 15. /0,&mnFT<4TdrN_<90 .&'6%,(9 $%)M'$% *%M'$% ,%M'$% -%M'$% 16. /NAB29!789 S ), < ) 8185KL $% C L U C π M ) = % *% ), ) . S & , % ,% ), ) . S & , % -% ), ) . S & v, % 17. /.,1N9209.0,% 0%PQS ) ) 2F72 !L $% ) ) S ., = % *% ) ) . S , = % ,% ) ) , S . = % -% ) ) S .,= % 18. /N0)M'bµn909 b)µ6%i12H"34"5%i4T789hr%, L $%ob ' $% *%Mb$% ,%ob ' $% -%)Mb$% 19. .,R !"!L $%&'π( % *%&'π% o o q I % ,%&'π.,% -%&'π o o I q % 20. /\0.&b6u,&hMmwnmr%, "^r04JL $%bb$% *%)'b$% ,%)bb$% -%)'b$% 21. /N0,&M'bn90.&b)µ6%i12H "34"5%i4T789S ) &M'r%, $%d%M) c' $% *%h ' $% ,%h ' $% -%d$ 22. /N0^b))TnAB2909bw6% Gv: Trần Quang Thuận Tel: 0912.676.613 – 091.5657.952 b ĐẠI HỌC SƯ PHẠM HÀ NỘI i4T12'r%,B $%))h$% *%))d$% ,%d%M) c^ $% -%h%M) c^ $% 23. /02909.&)M60,&M)µn% ] , &^r!&h)$%!8 ) H% $% ) &b))$% *% ) &b)$% ,% ) &^)$% -% ) &')$% 24. /029.&)M60,&M)µn%0 %]4T789mr!d)$%, L $% ) &b))$% *% ) &^)$% ,% ) &')$% -% ) &)M$% DẠNG 4: NĂNG LƯỢNG ĐIỆN TRƯỜNG VÀ TỪ TRƯỜNG 1. k10,&b µ nH04J m%M) cb ,%DEFL $%d%M) c^ x% *%M'm%M) c^ x% ,%d^%M) c^ x% -%m%M) c^ x% 2. -:%]7298 M'r!8GMm$%,"7298G )tr!8G'^$%*9HAB.&b6% iHEF8GL $%M)n'b%M) cM) x% *%M)nh%M) cM) x% ,%')nb%M) cM) x% -%')n''b%M) cm x% 3. 6789"8GdrH8GMµn% *"EFF89EF[T1 98GL $%Mm%M) qd x% *%)t%M) qd x% ,%t%M) qd x% -%Mm%M) qd x% 4. /0 FC π ' M) h− = FTFZJ%y0>'89 '2MAB2909 HL π b M = %*z(1AB>%y"9 _Z8ABg"5X>fEFHAB8Gh2EF C $%M+h))=% *%b+h))=% ,%M+M))=% -%^+h))=% 5. /.,012"34"50))bwn%- gfH.,<128Gdr%] 12^r!EF8G $%)^µx% *%)bµx% ,%)tµx% -%)Mµx% 6. /.,N,&dµn92%*4JH4T72 S &M^r%54T789H&mrEF 8GL $%bmmµx% *%htdµx% ,%htdµx% -%bmmµx% 7. .,10<2=>? ) &M/6a%DE F04J8G\4JH0=7"9 $%M=% *%)b=% ,%)'b=% -%'=% 8. .,k12=>0L{&'%M) ^ +=.&)b6 89M)r%DEFHL $%'bx% *%'bx% ,%'bx% -%'b%M) c^ x% 9. H0,&Msn82FM))r =0_2%DEFZ4H"8_2 "_|8C $% ∆ }&M)"x%*% ∆ }&bx% ,% ∆ }&b"x% -% ∆ }&M)x% 10. /.,k1<89H ( ) %,K=7"98G8GM) cd =!EF0 Gv: Trần Quang Thuận Tel: 0912.676.613 – 091.5657.952 d L C C K ĐẠI HỌC SƯ PHẠM HÀ NỘI <8G C q ^ ' ) %2=>HL $%'b%M) b 6a%*%M) d 6a% ,%^b%M) b 6a% -%M) cd 6a% 11. /N29.,>_>T"0]_1 2,g!~f%/!0"0]B5E FEF8G%DEF T2H=0=~L $%9•% *%9€% ,%"3V% -%9•% 12. /.,1N0,9209.% 0%*789S ) %DEF H8G $% ' M ., ' % *% ' ) S ., ' % ,% ' ) M ,S ' % -% ' M ,. ' % 13. /0H,&^µn%(4!4T 789M'r%]4T789tr!EFH $%'mm%M) c^ x% *%Md'%M) c^ x% ,%M'd%M) c^ x% -%^%b)%M) c^ x% 14. /.,029.&)b6,&b)wn%6 789br%DEFH"!HL $%'b%M) c^ xu M)) π =% *%)d'bxu M)) π =%,%d'b%M) c^ xu M) π =% -%)'bxu M) π =% 15. /Nhb)Tn9h) H µ 12Mb Ω %@9 ZT3=Z8G85B!H0"4T Mbr% $%Mdt%M) ch }% *%Mot%M) ch }% ,%Mto%M) ch } % -%'Mo%M) ch }% 16. /N901&)bΩ9'obµ60 ^'))Tn%6zT9ZT3=Z85B!H0 <4Tdr% $%bMhµ}% *%'Mb}% ,%Mho}% -%Mhoµ}% 17. /NAB0.&'M) c^ 6,&mn!AB0125B !br7'89HT9ZT3=Z@&d}% i1HAB04JL $%M))Ω% *%M)Ω% ,%b)Ω% -%M'Ω% 18. /.,NAB0.&b)60,&bwn%D0 12‚&M) c' ƒ!5B!304JH57 89S ) &M'rT9ZT3=ZL $%o'}% *%o'}% ,%o'w}% -%o'))}% DẠNG 5: CHO BIỂU THỨC DÒNG ĐIỆN XÁC ĐỊNH CÁC ĐẠI LƯỢNG CÒN LẠI Gv: Trần Quang Thuận Tel: 0912.676.613 – 091.5657.952 o ĐẠI HỌC SƯ PHẠM HÀ NỘI 1. ,K.,1&))m=')))g$f%, AB09b)/%„4J7895 K8G4JC $% Vb^ % *% V'^ % ,% Vh^ % -% V^ % 2. /1.,N0'bnAB09.%- 8;Te!&))'=m)))g$f%EF 5 st ^m))) π = C $%hmb J µ % *%htb J µ % ,%thob J µ % -%hdb J µ % 3. /1.,N0'bnAB09.%- 8;Te!&))'=m)))g$f%„4J.EF C $%)d6hmb J µ % *%M6hdb J µ % ,%)m6htb J µ % -%)d'b6M'b J µ % 4. /1.,FZTEF J µ ^ N:0 =Zmr%„4JHC $%)M^b J µ % *%)MMb J µ % ,%)Mhb J µ % -%)M'b J µ % 5. /1.,FZTEF J µ ^ N:0 =Zmr%*2=>0H^)))+=%„4J9HABC $%)M^b6% *%)b6% ,%)Mb6% -%)hb6% 6. /1.,N0,AB09.&)M'b6% -UN:0=Z ξ ZTEF'b J µ ! K & ) =^)))g$f%„4J ξ C $%M'r% *%Mhr% ,%M)r% -%MMr% 7. /N0AB.29,2"4%]9 2TEF8GEFABL $% LC π % *% ' LC π % ,% ^ LC π % -% h LC π % 8. /.,NAB2909M60 F µ π M) %"9XS ) X ' ) U + C $%h s µ % *%M s µ % ,%' s µ % -%d s µ % 9. „…1.,%XEFXE FL $% LC π % *% ^ LC π % ,% ' LC π % -% LC π ' % 10. 83, M , ' >FZT EFM J µ N:0=Z^r%,B5"4]JM =J'%,K=7"9M s µ !EF 98G%„4JABC $%)omo$ *%)omb$% ,%)omd$% -%)om^$% 11. FZTEFM J µ N:0=Z ^r%,K=7"9M s µ !EF9 8G%„4J9HABC $% H µ π ' h^ % *% H µ π ' hb % ,% H µ π ' h' % -% H µ π ' h) % 12. /.,NAB2909.0%-U N:0=ZdrZTEFb J µ !K="9 _ZM s µ %„4J.C Gv: Trần Quang Thuận Tel: 0912.676.613 – 091.5657.952 m ĐẠI HỌC SƯ PHẠM HÀ NỘI $% H µ π ' h % *% H µ π ' d' % ,% H µ π ' dM % -% H µ π ' dh % 13. /.,1K8;Te! &))^= t ω g$f%„4J,C*K=7"9_Z)'b s µ !EF EF8G8G J µ π m) % $% pF π M'b % *% pF π M)) % ,% pF π M') % -% pF π 'b % DẠNG 6: VIẾT BIỂU THỨC ĐIỆN TÍCH, CƯỜNG ĐỘ DÒNG ĐIỆN VÀ HIỆU ĐIỆN THẾ 1. .,1! $%FT<1% *%lT h π =<1% ,%UT<1% -%=<T ' π =<1% 2. /AB2909 HL π ' = _>T<0 FC µ Mmh= % i4TKAB085K ffg d M))=gM)) Vtu L π π −= %*5KH 0L $% f h M))=g π π −= ti g$f% *% f h M))=g π π −= ti g$f% ,% f h M))=gbM) π π −= ti g$f% -% f h M))=gbM) π π += ti g$f% 3. /N0, AB09.&M) c^ 6%i12H AB4AB>"34"5%*85KH4T72ABL &m)=g'%M) d cπ+'fr85KHL $%&^=g'%M) d fg$f% *%&)^=g'%M) d cπfg$f% ,%&)^=g'%M) d fg$f% -%&^)=g'%M) d c ' π fg$f% 4. /.,N9 HL µ d^)= 0 pFC hd= % .ZB M) ' = π %P9=\1582H4J Cq d ) M)%d − = % *5K89L $% fgM)%dd=M)%d od Ctq − = ffg ' M)%MM=gdd o Ati π −= % *% fgM)%dd=M)%d od Ctq − = ffg ' M)%dd=gdht o Ati π += % ,% fgM)%dd=M)%d dd Ctq − = ffg ' M)%MM=gdd d Ati π −= % -% fgM)%dd=M)%d dd Ctq − = ffg ' M)%dd=gdht d Ati π += % 5. ,K fgM))=)b) Ati π = %6=>9H AB'6%.ZB M) ' = π %i85KH04J=ABC $% FC ' M)%b − = ffg ' M))=g M)%b ^ Ctq π π π −= − Gv: Trần Quang Thuận Tel: 0912.676.613 – 091.5657.952 t ĐẠI HỌC SƯ PHẠM HÀ NỘI *% FC h M)%b − = ffg ' M))=g M)%b ^ Ctq π π π −= − % ,% FC h M)%b − = ffg ' M))=g M)%b ^ Ctq π π π += − % -% FC ' M)%b − = fgM))= M)%b ^ Ctq π π − = % DẠNG 7: MẠCH GHÉP 1. /H4B=03B0<,9<9. F=008<=0')%i5F=008<=0^)T9 _==<H0,†8G $%^,% *%,% ,%h,% -%',% 2. /"U, M !2=>H? M &h/6a%] _, ' ==<, M !2=>H?&'^/6a%D_, ' >T<, M !2=>H=~8G $%)d/6a% *%b)/6a% ,%b^/6a% -%^)/6a% 3. ,N,9.%*z(12H %DB,814, M , ' g, M ‡, ' f_>T!2=>H M'b6aB81_==!2=>Hd6a%„4J2 =>H"B,81, M C $%M)/6a% *%t/6a% ,%m/6a% -%ob/6a% 4. ]_, M !0? M &h)"6a"B, M 8G, ' !0 ? ' &^)"6a%r[B"_==, M , ' !0?L $%'^g"6af% *%b)"6a% ,%o)"6a% -%M)"6a% 5. /0^)n!02=>'%M) ^ 6a%i502 =>M) ^ 6a!T9_04J $%M')n>T<<% *%M')n==<<% ,%^)n>T<<% -%^)n==<<% 6. /.,N9209.&d^)60, 8hdTn''bTn%2=>H8"9L $%)^'"6aqM)b"6a% *%)^'6aqM)b6a% ,%)^'P6aqM)bP6a% -%)^'/6aqM)b/6a% 7. /.,k109."3V%]0, M !2=> H? M &ob/6a%]B, M 8G, ' !2=>H? ' &M))/6a%DU, M >T, ' !2=>?HL $%Mob/6a% *%M'b/6a% ,%mob/6a% -%'b/6a% 8. /09"3V.%DB,814, M , ' , M > T, ' , M ==, ' !"!H2F M ' &^m s µ == &M) s µ % 6WBI4J M 8 M ‡ ' C $%t s µ % *%m s µ % ,%M) s µ % -%d s µ % 9. /9._<, M !2=>H? M &ob/6a%]_.<, ' !2=>H? ' &M)/6a%!2=>H"…T, M ==<, ' N_.L $%'/6a% *%^/6a% ,%d/6a% -%m/6a% 10. .,1"U9. M !2=> ? M &h)"6a"U9. ' !2=>? ' &^)"6a%] U99_>T!2=> $%'^"6a% *%b)"6a% ,%hb"6a% -%hm"6a% Gv: Trần Quang Thuận Tel: 0912.676.613 – 091.5657.952 M)