At 03:19 AM 11/19/2003, Daniel L. Katz wrote: >On Mon, 17 Nov 2003 12:30:05 -0800, Ryan Press <ryan@PRESSLAB.US> wrote: > >ryan: > >i agree with all you have said. > >after re-reading the many posts on this topic, i realized that perhaps the >confusion could be cleared up by noting: > >1. the equation R = V/I is the mathematical definition of resistance, and >is valid irrespective of whether a material is ohmic or non-ohmic. > >2. ohmic materials, however, obey the equation I = V/R, with R constant; >i.e., ohm's law. > >here is a beautiful application of ohm's law. The short paper at http://www.av8n.com/physics/resistance.htm may help the Ohm's Law uber alles party understand where Daniel is coming from and perhaps discover that the real area of disagreement is not so large as they might think -- at any rate, that was its effect for me. I recommend it. :) david -- David Beierl -- dbeierl@attglobal.net |
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