không làm khó em Thân ái! CHÌA KHÓA u1 u2 n v i i1 i2 /2 thì: tan 1.tan a R Th a y R0 ZL Z ; ZC RLC R(r,L)C U2 ; 2(R r) U2 2R Pmax U2 ZL m c o h Pm¹chmax PRmax R R1R R02 r (ZL (ZL R r ZC ) ZL ZC )2 ; P1 P2 ZC U2 ; Pmax R1 R (R1 r)(R r) (ZL P U2 cos2 R ZC ; Z C )2 cos U2 R1R ; 2 CHÌA KHÓA max L Th ay ZL Ha i gi Th ay Ha i gi Th ay gi U2 ; R cos 1; R Z ZC ZL ; Pmax U2 ; R cos 1; a R m c o h Z [P1 P2 ]; [I1 I2 ];[Z1 Z2 ];[cos1 cos ] max Ha i Pmax [P1 P2 ]; [I1 I2 ];[Z1 Z2 ];[cos1 cos2 ] max C ZC ; ; LC Pmax U2 ; R cos 1; R n v i ZC ZL1 ZL2 ZL ZC1 ZC2 Z [P1 P2 ]; [I1 I2 ];[Z1 Z2 ];[cos1 cos2 ] [ZL1 ZC2 ];[ZL2 ZC1 ] CHÌA KHÓA L LC Imax U R ZL ZC UL UC Pmax U2 R uL Z R U UR cos a m c o h max UCmax ;URCmax ;URmax ULmax ;URLmax ;URmax n v i UL UC uC max URmax C UR U I ZL ZC R Z I CHÌA KHÓA Lmax RLC i Ha L i ig Ha URC RC U U U 2 L U R ZL ZC ZL0 L : ULmax giá m c o h ZL L : URLmax URLmin Z L n v i C a L1,L : UL1 UL2 L1,L : URL1 URL2 1 ZL1 ZC ZL2 4R ZL ZC R tan ZL ZC R 0; URLmin ZC2 Z2C Z ZL U R R ; ULmax ; U sin 2 ZRLmax U ; ZL R R U U C UC UL1 UL2 U tan tan2 U.R R2 Z2C 2R ; ZC 0 sin ULmax cos( R ; ZC tan 2 R ZC R R ) Z2C CHÌA KHÓA Cmax RLC i Ha C i ig Ha URL U URL U2 ZC U2C C : U Cmax giá m c o h C0 : URCmax URCmin ZL ZC0 ZC Z C tan ZC n v i ZL2 a C1,C : UC1 UC2 C1,C : URC1 URC2 R2 1 ZC1 ZL ZC 0; ZC2 4R 2 ZC ZL R U R R ; UCmax ZL R URCmin U sin ZL2 ZL2 ; 2 ZRCmax U UL2 UL ; ZC R UR2 UC1 UC2 U tan 0 R ; ZL tan2 U.R R2 ZL2 2R ; ZL 2 tan sin R ZL R UCmax cos( R ) ZL2 CHÌA KHÓA L ; L R2 C 2ZC (ZL ZC ); tan tan ; RC C Lmax R2 ZL2 Z2 ZC2 U ULmax fC2 fL2 i ig Ha , a : UL1 UL2 L m c o h R2 ; L C C Cmax R L 2ZL (ZC UCmax tan tan ZL ); Z2C 1 12 L : ULmax 2 ; RL Z2 n v i ZL2 U fC2 fL2 , : UC1 UC2 C : U Cmax C 2 2 C R R L L C Thân