Re: Electric Field Mapping

[Bernard Cleyet <anngeorg@PACBELL.NET>]

the version I've used has a cork board to which one pins the poorly
conducing paper.  I use #5 Moore push pins (long points) for terminals.
After sticking well (deeply) in to the cork I liberally "paint" the paper
and pin joint with the colloidal Ag paint.  The push pin head is well
fitted for alligator / crocodile clipping.  I further tape down the leads
so one doesn't move them and, thereby,  break the connections.  I had no
problem with the lack of high conductivity in the paint -- one, or more,
of the suggestions already given was probably not observed.

bc

Tina Fanetti wrote:

> I used the conducting silver ink on black conductive paper.  I had th=
> e positive lead on the point charge and the negative lead on the ring=
> .
>
> I am going to try and figure out if the resistance is constant across=
>  the ring.  I know there was good contact.
>
> Tina
>
> Tina Fanetti
> Physics Instructor
> Western Iowa Technical Community College
> 4647 Stone Ave
> Sioux City IA 51102
> 712-274-8733 ext 1429