dong dien xoay chieu - on thi

BÀI TẬP DÒNG ĐIỆN XOAY CHIỀU  ( )  u U tw=  !"#$%&$ '( ω ) * ) +(*,( ω *,-( ω ) *  ) ."/ 0$ W 1 2 )( C p - = 3(-4$5 ) )   2 i t p p æ ö ÷ ç = + ÷ ç ÷ ç è ø 6'7(8!9&:;$:8<=$9&>*>  ?>   '(2 @ 6 W 7+(6 W 7 ()6 W 7 -() A 6 W 7 B*) B W *@, π 6C7* DB ,2 π 637(.! #!0*) ) 6 π 7E(+<F%G$#H4$!9$ '( ( ) A )   , Bi tp p= + 6'7+( ( ) A )   , @i tp p= - 6'7 ( ( ) A )   , @i tp p= + 6'7-( ( ) A )   , Bi tp p= - 6'7 2IJ!KL!!&)M!N%G$#H4$!5 $" 2 π (O5/LMP$Q '(>  *)>  +( L C Z Z R- = (>  *>  -(>  *)>  AKL R$0 A )R = W   ) RL U U V= =  ) C U V= (R$S 81TM '( ) U +() ) U ()U -(U @ KL R$  0   " L=%V( C!!    M ( )   u U tp= 6E7 2  ) C p - = 637 W L p = 6C7(.<R$S81TXY$09ZT :;$'() W +(A W ( W -() W [.!!KL*@ )  t π 67#KLSL:<F H4$!M* ) 6 ) t p p + 7'(L"\$M !$Y$JNQ '(+(( -( WIJ$]!9&#/"#X/1!"$!H$(^ $"T!!)/_!F )  LC w = Y 5/L R$ P$Q '(C!!!H1$&)!9&:;$!!!H1$&)/ +(`=$9&T:;$ R$ (%G$#H4$!!!a$ -(C!!!H1$&)#/:;$!!!H1$&)1! bC!!$\#KL%G$#H4$!5MM%V":<F * ) 6ω?π,B76E7*2 ) 6πDπ,@76'7R$S81TM '() B U( +( (2U( -()U( Ea$#G<"H4$!KL  *c  6ω?ϕ  7 ) *c  6ω?ϕ ) 7a$ "$09ZFGMAc  %$#H4$!$$/4#H4$!$d$(CH4$!LM! #$":;$('( @ A π ( +( B 2 π ( ( @ π -( B ) π ( !KL$]#HL"!9&9#X/N1!"! H$(+!!$\a$N%G$#H4$!0:<LM '(C!!98R$N!!98#HL( +(/ 0$H$ 0$T:;$( (`9$!K/L9!%V$#$%&$!( -(C!!!H1$98#HLMNe!!!H1$98( )KL$]#HL/1!:9&(O #!!KL=Z"fYSL*,2f ) π ) (OL=Y '(C!R$S98L=( +(R$S8198 R$=( (C!!$\:9& R$=( -(.#M!$\L=( 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‚  … 8 … R$ ƒ  …   ‚  ‚ % ‚  ‚ ('(*Ω +(*Ω (*)Ω -(*)Ω  A.d ‚ 8 ‚ 8 ‚ 8 ƒ *)π6E7 „  „  ‚ 8 ‚ † „ %e „ $R ‚ H „ $8 ‚ 5 ‚  ƒ :8 … % ƒ  *)6π?ϕ76'7(`† „ ϕ('(ϕ*( +(ϕ*π( (ϕ*π,) -(ϕ*Dπ,) A). ‚  ‚ ' ƒ 8 ‚ 9e …  „ R ‚ HL „  …  „  ‚ 8 ‚ d ƒ R ƒ 8 ƒ (+M „ R ‚ 8 … 98'e ƒ   '+ *π6E7 „  + *6πD76E7(`† „ :8 … % ƒ 8 ‚ 8 ‚ 8 ƒ  ' ( '( '  )   E B p p æ ö ÷ ç = - ÷ ç ÷ ç è ø +( '  ) ) 6 7 Ep= ( '  )    E B p p æ ö ÷ ç = + ÷ ç ÷ ç è ø -( '  )   E B p p æ ö ÷ ç = + ÷ ç ÷ ç è ø AB`9$ ‚  ‚  R$ ƒ R ‚ M8 ‚ $% ‡  „ R ‚ HL „  „ 9e …  „  R$ 8 … :d „ $'(π,@ +(Bπ,2 (π,2 -(π,) A2`9$ ‚ 8 ‚ KL8 „  R$ ƒ 8 ‚ 8 ‚ 8 ƒ $% ‡  „  ‚  ‚  „ %e „ $R ‚ H „ $8 ‚  9$ ‚ M „ M%e ‚ M „ *π6E7 „ *6π?π,B76'7(R$ ƒ 89$ ‚ M „ '(AU +()AU (AU -()AU AAN"<L=%V(`9$"K0Z(!%V H%N!!*k 2  w (ENk R$= w 9%N(O!!!H1$$\# /X(n09ZTK0Z:;$:<FLQ '(* ) ? 2 2 1 C w +(*) ) ? 2 1 Cw (* ) ? 2 1 2Cw -(* ) ? 2 1 Cw A@H „ $8 ‚  ƒ  „ R ƒ f*ACm5 ‚  ‚  R$ ƒ H „ $ˆ ƒ  8 ƒ R$ ƒ  …   ‚ † „  ƒ LR$ ƒ  ƒ $ ƒ 9 ‚ % ‚  ‚ (`† „ 8 ‚ H$ …  ‚ 8 ‚ :8 ƒ R ‚ % ‚  …  … R ‚ HLM „ *,π6C7 '(≈B2( DA 3( +(≈@B@( DA 3  (≈Ab( DA 3 -(≈b2)( DA 3  A) #9$"*) W *), π C*)( D2 , π 3$]"fL= %V(.<Nef/_ 'f‰)ACm+f £ )ACm(fŠ)ACm-(fŠ)ACm . +(*,( ω *, -(  ω ) *  ) ."/ 0$ W 1 2 )( C p - = 3( -4 $5 ) )  . )   , @i tp p= - 6'7 ( ( ) A )   , @i tp p= + 6'7 -(  ( ) A )   , Bi tp p= - 6'7 2IJ!KL!!&)M!N%G$#H4$!5