[sdiy] Wire gauge vs resistance

[René Schmitz]

Hi Kevin and all,

Kevin Lightner wrote:
> Is there any chart or formula for approx wire resistance?
> (Solid copper, not stranded, etc.)
> 
> Something that takes length and gauge and provides a rough expectation 
> of basic DC resistance?


R = r * l/A

r = specific resistance (Copper: 0.0175 mm^2/m)
A = cross section area (in mm^2)
l = length (m)

Converting AWG to mm^2 should be found on the web somewhere.

Cheers,
  René

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uzs159 at uni-bonn.de
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