Question

The velocity factor of a coaxial cable is typically 0.8. What is the speed of transmission?

(a) 0.8 x 10^8 m/s

(b) 2.4 x 10^8 m/s

(c) 1.7 x 10^8 m/s

(d) 0.2 x 10^8 m/s

This question was posed to me in my homework.

The question is from Transmission Line Basics topic in portion Transmission Lines of Avionics

Answer 1

Right option is (b) 2.4 x 10^8 m/s

The explanation is: Velocity of transmission = Velocity factor x Velocity in free space = 0.8 x (3 x 10^8) = 2.4 x 10^8 m/s.