The characteristic impedance of a coaxial cable is of the order of

The characteristic impedance of a transmission line is:

The characteristic impedance of a transmission line is:

What is a coaxial cable?

Coaxial cable is an example of

The characteristic impedance of a loss -less transmission line is: given by:

A two wire transmission line has a capacitance of 20 Pf//m and a characteristic impedance of 50 Omega What is the inductance per metre of this cable ?

What is impedance?