Calculating RC-Constant of Coaxial Cable

[electricman]

Hi,

I am doing an experiment with a coaxial cable and i want to Count out it expected RC-constant for the cable.

I have measured the resistance for the cable, but when i count the RC, the resistansen that will be used only is the half of it resistans measured in the beginning.

Why should i use the half resistance?

Additional Details

I think it has something to do with the electrons, or?

 

[electricman]

Isn´t there anyone who can explain this?

 

[chroot]

I'm sorry, but I can't even understand what you're saying.

- Warren