Re: AC electricity

["William J. Larson" <bill_larson@CSI.COM>]

==>Question? and how fast do the e's move in a vacuum,
My recollection is that electrons in your PC screen move at 10 % of c.

==>I suspect a contradiction in the second quote, or am I misreading it.
==> Hewitt explains .. then ... No such thing ...
Maybe ""explains" is the wrong word. I was expecting [correctly :-)  ]
many others to "explain" with "electric field" & "P = I^2 R", etc., so I did
not. bother to quote Hewitt on this. Sorry. I addressed why it is a poorly
worded question in the first place.

Cheers,
Bill Larson
Geneva, Switzerland


----- Original Message -----
From: Bernard G. Cleyet & Nancy Ann Seese <georgeann@REDSHIFT.COM>
To: <PHYS-L@lists.nau.edu>
Sent: 2001 January 18 1:53 AM
Subject: Re: AC electricity



> < Hewitt explains this very well by pointing out the underlying
> < misconception, i.e. that the purpose of the current is to "deliver
> < electrons". No such thing happens. Even in a DC circuit
> < the electrons hardly move (I'm talking about net motion, not
> < the very fast random thermal motion). Their speed is
> < about 30 cm / hour. There is an electric field in the wire.
> < It supplies the energy. "Power utilities do not sell electrons.
> < They sell energy. You provide the electrons."
>
>
>
> Question? and how fast do the e's move in a vacuum, a super conductor?
>
> bc
>
> P.s. I suspect a contradiction in the second quote, or am I misreading it.
> Hewitt explains .. then ... No such thing ...
>
> I'm ready to stand corrected.