Velocity factor of lossy transmission line?

[hobbs125]

I have been reading up on transmission lines and I was wondering:

If a transmission line has high dielectric loss (low conductance, G) does this have any effect on the velocity factor?

I would think that it would reduce the velocity factor because some of the energy would be absorbed by the conductance, but I'm not certain.

 

[maajdl]

Absorption does not mean reduced velocity, it means essentially amplitude becoming smaller.
You should go back to the theory of lossy lines.
However, there could be a subtle link.

I have a question: what is the velocity of this wave:

exp(- α x) exp(i(k x - ω t))

how would you understand a complex wave velocity ( w/(k+iα) ) ?