What is physical significance of characteristic impedence

Question

Accepted Answer

Characteristic impedance is the ratio of voltage to current in a transmission line and represents the resistance to the flow of electrical energy.

It is a measure of the resistance to the flow of electrical energy in a transmission line
It is the ratio of voltage to current in a transmission line
It is a function of the geometry and materials of the transmission line
It determines the maximum power that can be transmitted through a transmission line without distortion
It is important in the design and analysis of high-frequency circuits and systems