Complex impedances E(s)=Z(s)I(s) Z1 for resistance R:Z=R e; Z2 eo for capacitor C:Z= 1 Cs for inductance L:Z=Ls E。(s) Z,(s)I(s) Z2(s) E,(s) Z(s)1(s)+Z2(s)I(s) Z,(S)+Z2(s) 日96Complex impedances i e o e Z1 Z2 () ()() resistance R: Z R 1 capacitor C: Z C s inductance L: Z L Es Z sIs for for for s     ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) 1 2 2 1 2 2 Z s Z s Z s Z s I s Z s I s Z s I s E s E s i o    