Re: Toward the equilibrium

["Bernard G. Cleyet & Nancy Ann Seese" <georgeann@REDSHIFT.COM>]

P.s.  Also no one? has responded as to whether anything travels in the
interior of the conducting solid sphere  (Ludwik's original ?).  Whether it's
field or electrons, before or after contact.  I think it depends on the rate
of movement of the charge towards the sphere. At contact I think there will
be ringing at a high enuff freq. so that skin effect will dominate.

Am I off base?

bc


Bob Sciamanda wrote:

> An excellent observation which certainly applies to Ludwig's original
> question.
> The model which I described envisions an unbalanced charge present in the
> interior of a uniform conductor at t=0, and predicts an exponential decay
> of the charge at that point - with a time constant of
> epsilon/conductivity.
>
> The derivation is not complex and is in almost any Junior E/M text.
>
> Bob
>
> Bob Sciamanda (W3NLV)
> Physics, Edinboro Univ of PA (em)
> trebor@velocity.net
> http://www.velocity.net/~trebor
>
> ----- Original Message -----
> From: "Tim Folkerts" <tfolkert@FHSU.EDU>
> To: <PHYS-L@lists.nau.edu>
> Sent: Thursday, January 04, 2001 10:26 AM
> Subject: Re: Toward the equilibrium
> > . . .
> > You need to start before t=0.  As the +1 uC is brought close to the
> > conductor, the electrons in the copper are already rearranging
> themselves.
> > The point on the conductor nearest the external charge will have a -1 uC
> > charge, while the rest will have a +1 uC surface charge.  When the
> external
> > charge finally reaches the conductor at t=0, it only needs to travel to
> the
> > -1 uC of electrons waiting at the nearest side.
> > . . .
> > Tim Folkerts
> > FHSU