Chronology | Current Month | Current Thread | Current Date |
[Year List] [Month List (current year)] | [Date Index] [Thread Index] | [Thread Prev] [Thread Next] | [Date Prev] [Date Next] |
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
. . .themselves.
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
The point on the conductor nearest the external charge will have a -1 uCexternal
charge, while the rest will have a +1 uC surface charge. When the
charge finally reaches the conductor at t=0, it only needs to travel tothe
-1 uC of electrons waiting at the nearest side.
. . .
Tim Folkerts
FHSU