Electric field of an infinite carged wire in a conductive medium

AI Thread Summary
The discussion focuses on finding a reference for understanding the electric field of an infinite charged wire in a conductive medium, particularly when the conductivity is non-zero. The original poster has searched classical textbooks without success, noting that the problem is well understood only when conductivity is zero. A participant suggests that Gauss's law can still be applied if the charge per unit length is known, and mentions that Franklin's "Classical Electromagnetism" addresses similar problems, although not for the exact geometry in question. The original poster expresses gratitude for the clarification received. Overall, the challenge lies in the complexities introduced by the conductive medium.
fiz65
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Hi,
I need to find a book where the problem of the subject is treated.
(I am assuming that charge is being fed to the wire by an external source,
so as to keep it constant)

Does anybody know a reference where this problem is treated?
I have looked for an answer in the classical textbooks (stratton,
panofsky-phillips, jackson, griffiths, etc,), and I've found nothing

Of course, if the conductivity of the medium is zero the answer is
well known, but if sigma is non zero, the answer seems to be not
that easy.

Many thanks
 
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If the charge per unit length is known then Gauss's law still applies, so E is the same as with no conductivity. That type of problem is treated in Sec. 6.9 of Franklin, "Classical Eectromagnetism", but not for your specific geometry.
 
Hi Meir, many thanks for your answer, I think I've understood the point.
 
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