[3] Element Z Dual Z' Resistor R R {\displaystyle R\,\!} Conductor G = R 1 R {\displaystyle {\frac {1}{R}}} Conductor G 1 G {\displaystyle {\frac {1}{G}}} Resistor R = G G {\displaystyle G\,\!} Inductor L i ω L {\displaystyle i\omega L\,\!} Capacitor C = L 1 i ω L {\displaystyle {\frac {1}{i\omega L}}} Capacitor C 1 i ω C {\displaystyle {\frac {1}{i\omega C}}} Inductor L = C i ω C {\displaystyle i\omega C\,\!} Series impedances Z = Z1 + Z2 Z 1 + Z 2 {\displaystyle Z_{1}+Z_{2}\,\!} Parallel admittances Y = Z1 + Z2 1 Z 1 + Z 2 {\displaystyle {\frac {1}{Z_{1}+Z_{2}}}} Parallel impedances 1/Z = 1/Z1 + 1/Z2 Z = Z 1 Z 2 Z 1 + Z 2 {\displaystyle Z={\frac {Z_{1}Z_{2}}{Z_{1}+Z_{2}}}} Series admittances 1/Y = 1/Z1 + 1/Z2 1 Z 1 + 1 Z 2 {\displaystyle {\frac {1}{Z_{1}}}+{\frac {1}{Z_{2}}}} Voltage generator V Current generator I = V Current generator I Voltage generator V = I