Article View: sci.electronics
Article #7184Re: A Simple Question?
From: Greg Ebert
Date: Wed, 12 Sep 1990 22:57
Date: Wed, 12 Sep 1990 22:57
28 lines
1658 bytes
1658 bytes
principe@iccgcc.decnet.ab.com writes:
>A simple question: Does electrical current posess polarity?
>
> Tony P.
Almost sounds philosophical. Current is the flow of electrons, which are
defined as having negative charge. I plead ignorance in the field of plasma
physics, but I would imagine that the flow of a plasma, either positively
or negatively charged, would also constitute a current. [Could a
sci.physicist please set me straight ?].
Polarity is the increase or decrease in potential energy between 2 points
(but not the _amount_; thats voltage).
In my humble opinion, I would say that the existence of an electrical
current can only be caused by a difference in potential, thus I would say
that current DOES possess polarity.
- - - -
"Current doesn't flow" "You cant buy watts"
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!zephyr.ens.tek.com!gvgpsa!gold!grege From: grege@gold.GVG.TEK.COM (Greg Ebert) Newsgroups: sci.electronics Subject: Re: A Simple Question? Message-ID: <1449@gold.GVG.TEK.COM> Date: 12 Sep 90 22:57:42 GMT References: <882.26ee58ba@iccgcc.decnet.ab.com> Organization: Grass Valley Group, Grass Valley, CA Lines: 28