The impedance matrices of two, two-port network are given by and . If these two networks are connected in series, the impedance matrix of the resulting two-port network will be
The impedance matrices of two, two-port network are given by and If these two networks are connected in series, the impedance matrix of the resulting two-port network will be
and 
If these two networks are connected in series, the impedance matrix of the resulting two-port network will be
