Date: Mon Apr 2 23:22:24 2007

Author: William Beaty

Subject: Re: Visual Electricity Demonstrator

On Mon, 2 Apr 2007, Paul Nord wrote:

> The tradition is to describe current flow from positive to negative.
> This was set before the sign of the charge carrier was known. Bad
> choice.

Actually, the charge carrier always depends on which type of conductor
you're using. Metals are very common, but they aren't a standard
conductor, and we ignore other materials at our peril. Here's a brief
article I wrote about this problem:

Franklin should have said that electrons are positive? WRONG!

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William J. Beaty SCIENCE HOBBYIST website
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