[SI-LIST] Re: Formula for trace resistance not impedence
- From: Martyn Gaudion <martyn.gaudion@xxxxxxxxxxxxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Thu, 19 Dec 2002 20:55:22 +0000
Hello Chris,
If you want to make a resistance calc for yourself
the formula is:
R = rho L/A where:
R is the resistance.
rho is the resistivity of copper (units Ohm meters or Ohm centimeters)
L is the length.
A is the cross section area
Or if you would like a ready made free DC resistance calculator based
on the above formula, you can find one here, that includes copper
and a variety of other base materials:
www.polarinstruments.com/products/utilities/trc100.html
Kind regards
Martyn Gaudion
www.polarinstruments.com
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