What is the velocity factor of a transmission line?
The ratio of its characteristic impedance to its termination impedance
The ratio of its termination impedance to its characteristic impedance
The velocity of a wave in the transmission line multiplied by the velocity of light in a vacuum
The velocity of a wave in the transmission line divided by the velocity of light in a vacuum✓Bonne réponse
Explication
Velocity factor states how fast a wave travels in the line as a fraction of its speed in free space. It is always less than one because the dielectric between the conductors slows propagation.