Re: Ohm's Law

[Rick Tarara <rtarara@SAINTMARYS.EDU>]

----- Original Message -----
From: "Bob Sciamanda" <trebor@VELOCITY.NET>

> Good point - I don't like it, but we do that with other definitions  (eg.,
> it is kosher to regard one or more of Newtons "laws" as definitions).
>
> More importantly, if R= V/I is a statement that the resistance is
> independent of voltage, where is the definition of resistance (R)?

How about  R = rho(T)L/A?

where rho is the temperature dependent resistivity of a material.

Rick

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Richard W. Tarara
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Saint Mary's College
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rtarara@saintmarys.edu

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