[SI-LIST] : DC resistance of a trace

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From: Andrew W. Riley III (drew@jardon.com)
Date: Fri May 25 2001 - 10:30:26 PDT


Hello,

I am looking for a formula and an explanation or definition of the variables to calculate the DC resistance of a trace. Maybe a chart or cheat-sheet? If possible, I would love any information or related links.
I think actual DC resistance of a trace is somewhere in the milliohms/inch depending on trace thickness and copper weight. What might cause a 4" trace to measure 14-17 ohms with a DMM?

Thank you for your time and help.

Cheers!
Drew

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