A commonly used coaxial cable, RG-58, has a characteristic impedance of 50 ohms. If the spacing between the conductors is doubled, its characteristic impedance will:

Question

Quizplus · Accepted Answer

The characteristic impedance of a coaxial cable is determined by the ratio of the diameters of the outer and inner conductors and the permittivity of the dielectric material between them. Doubling the spacing between the conductors (while keeping other factors constant) effectively increases this ratio, leading to an increase in the characteristic impedance.

A Commonly Used Coaxial Cable, RG-58, Has a Characteristic Impedance