2.R、L、C元件的阻抗和导纳 (1R: URERI ZER R =G R (2)L: UL=jOLIL Z= joL,Y= JOL OL (3)C: IC=JaCUC C g Ic=joc oc jOC UP DOWNUP DOWN 2. R、L、C 元件的阻抗和导纳 (1)R: U R R I R (2)L: L j j L ZL j L YL 1 1 , (3)C: Y j C C j C Z j C C , 1 1 G R Z R R , YR 1 U L j L I L I C j C U C