Capacitance per length of co-axial cabel

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Homework Help Overview

The discussion revolves around determining the capacitance per length of a coaxial cable, specifically involving a conductor of radius a and a shield of radius b. The subject area pertains to electrostatics and capacitance concepts.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore the application of Gauss's law in the context of capacitance calculations. There is a query regarding the correctness of a proposed formula for capacitance.

Discussion Status

The discussion includes attempts to verify a specific formula for capacitance, with some participants expressing agreement on its correctness. However, the conversation does not reach a definitive conclusion or consensus on the approach taken.

Contextual Notes

There is an implicit assumption regarding the use of Gauss's law and the parameters involved in the coaxial cable setup, but specific details or derivations are not provided.

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Find the capacitance per length of a co-axial cable with a conductor of radius a and a thin shield of
radius b.
 
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Again, what have you done so far? Think of terms of Gauss law.
 
i got the answer 2π€/ln(b/a)

is it correct?
 
Last edited:
Yep, should be.
 

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