2.RLC串联电路 R R jOL ++L L U U R u U JOC Uc HKVL: U=UR+UL+UC=RI+jOLI-j-c1 =|R+(c、、1 DI=R+j(X +XOH(R+jX)I Z=-=R+JOL-j R+fX=|Z∠ oC (以理步交通大学2. RLC串联电路 由KVL： . . . . . . . 1 j j I C U UR UL UC RI LI  = + + = +  − I R j X X I C R j L L C   )] [ ( )] 1 = [ + ( − = + +   R jX I  = ( + ) L C R u uL uC i + - + - + - + uR - Z z R jX C R j L j I U Z   = = +  − = + =  1   . I j L . U U L . U C . jωC 1 R + - + - + - + U R-