Mike right, George wrong. Arnold ----- Original Message ----- From: "M. G. Devour" <mdev...@eskimo.com> To: <silver-list@eskimo.com> Sent: Thursday, October 11, 2001 1:31 AM Subject: Re: CS>Current Density
> George wrote: > >>> The above calculation is for a single elecrode. Most use 2 so to > >>> get the actual current density of your setup you will need to > >>> divide the calculated current density by 2 > > I wrote: > >> Both electrodes are passing the same current, so I don't think > >> you need this last step... I would think only the anode surface > >> area need be calculated. > > George replies: > > The current is flowing through BOTH the anode and cathode and is > > equally distributed (assuming they are the same in all dimensions), > > therefore: > > > > Total current / total surface area = (total) current density. Double > > the surface area, no change in current = 1/2 the current density. > > Same result as if you had doubled the length of a single conductor. > > All the current that is flowing in the circuit passes through each > electrode. Both electrode surfaces will offer close to the same > resistance if they're both the same size and shape, and together with > the bulk resistivity of the water/CS determine the *amount* of current > that flows. In fact, the cathode could even have a different surface > area or be made from another metal than silver, for all that matter. > > >From the standpoint of making CS, what goes on at the Cathode has > no effect on the dynamics at the Anode, where silver atoms are leaving > the surface and undergoing agglomeration and hydration -- except its > role in determining the overall resistance of the circuit, which also > becomes irrelevant if you're doing current control. > > You may define "current density" differently than I do, but it seems > that you need only calculate current density for the anode. We *are* > both talking about a typical LVDC system, right? > > Anybody else have an opinion? > > Mike D. > [Mike Devour, Citizen, Patriot, Libertarian] > [mdev...@eskimo.com ] > [Speaking only for myself... ] > > > -- > The silver-list is a moderated forum for discussion of colloidal silver. > > To join or quit silver-list or silver-digest send an e-mail message to: > silver-list-requ...@eskimo.com -or- silver-digest-requ...@eskimo.com > with the word subscribe or unsubscribe in the SUBJECT line. > > To post, address your message to: silver-list@eskimo.com > Silver-list archive: http://escribe.com/health/thesilverlist/index.html > List maintainer: Mike Devour <mdev...@eskimo.com>
