For non ideal conductors there is resistance along the length of the line. Also if the medium separating the conductors
is non - ideal, there is leakage current through the medium which can be accounted for by placing equivalent
conductance between the conductors.
In the presence of transit time effect, all the line parameters, the inductance, the capacitance, the resistance,
and the conductance are of distributed nature.
The distributed parameters can be defined per unit length of the line.
R = Resistance of both conductors together for unit length of the line (ohms/m)
L = Inductance (self and mutual) for both conductors together for unit length of the line (Henery/m)
C = Capacitance between two conductors for unit length of the line (Farad/m)
G = Leakage conductance between two conductors for unit length of the line (Mho/m).
