Calculating RC-Constant of Coaxial Cable

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SUMMARY

The discussion centers on calculating the RC-constant of a coaxial cable, specifically addressing the use of half the measured resistance in the calculation. The user, Warren, has measured the resistance of the cable but is confused about why only half of this value is utilized for the RC-constant. The explanation relates to the behavior of electrons within the cable, which affects the effective resistance in the context of RC time constant calculations.

PREREQUISITES
  • Understanding of coaxial cable structure and properties
  • Basic knowledge of electrical resistance and capacitance
  • Familiarity with RC time constant calculations
  • Concept of electron flow in conductive materials
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Electrical engineers, physics students, and anyone involved in experiments or applications related to coaxial cables and their electrical properties.

electricman
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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?
 
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Isn´t there anyone who can explain this?
 
I'm sorry, but I can't even understand what you're saying.

- Warren
 

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