Re: [Phys-l] two kinds of electrical charge ????????

["Jeffrey Schnick" <JSchnick@Anselm.Edu>]

I find your One Kind of Charge document intriguing.  Agreement with your
position can be found in slides 5 and 6 of  Introducing Particle Physics
by Pablo del Amo Sanchez at:
<http://www.ep.ph.bham.ac.uk/general/outreach/Masterclass/talks2007/pdfs
/mc2007_PPIntro_Pablo.pdf>
which would suggest that if you are going to say that there are two
kinds of electrical charge, then to be consistent, you better say that
there are 6 kinds of color charge.


I disagree with your characterization "... just to introduce the idea of
'charge' (Q), say that the amount of charge can be positive, zero, or
negative, and proceed from there."  of the approach taken by "Reference
4" (The Feynman Lectures on Physics) in the document:
<http://www.av8n.com/physics/one-kind-of-charge.htm>

On page 12-7 of Volume I, Feynman says, "Objects carry electrical
charges which consist simply of electrons or protons."

On page 1-1 of Volume II, he says, "There are two kinds of 'matter,'
which we can call positive and negative."
and,
"And all matter is a mixture of positive protons and negative electrons
which are attracting and repelling with this great force."

Feynman's approach seems to be more consistent with the particle model,
item c on page 11 of the document "Senior 1, Appendices: Cluster 3, The
Nature of Electricity" at:
<http://www.edu.gov.mb.ca/k12/cur/science/found/s1/appen3.pdf>


> -----Original Message-----
> From: phys-l-bounces@carnot.physics.buffalo.edu [mailto:phys-l-
> bounces@carnot.physics.buffalo.edu] On Behalf Of John Denker
> Sent: Monday, July 30, 2007 2:33 PM
> To: Forum for Physics Educators
> Subject: [Phys-l] two kinds of electrical charge ????????
>
> Hi --
>
> Recently I was asked about the following statement:
>   <There are two kinds of charge, namely positive charge and negative
> charge.>
>
> That expresses the /two-fluid/ model of electrical charge.
>
> 1) Would anybody care to comment on this, perhaps contrasting it with
> the
> one-fluid model?
>
> This seems fundamental to any physics course ... yet there seems to be
> more divergence of opinion than I would have expected.
>
>
> 2) As you might have guessed, I have an opinion:
>   http://www.av8n.com/physics/one-kind-of-charge.htm
> Suggestions or comments on my analysis are welcome.
>
> I suspect there are arguments and counterarguments I have missed,
> although
> most discussions I've seen fall into the category of PbBA (Proof by
> Bold
> Assertion) which I don't find helpful.
>
>
> 3) I'd be interested to hear briefly:  What text are you using, and
> how
> does it handle this issue?
>
> _______________________________________________
> Forum for Physics Educators
> Phys-l@carnot.physics.buffalo.edu
> https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l