I did my tests and was not really successful, except for the fact that i learned more from it.
Did you got any results?
I couldn't arrive to a conclusion about why exactly it didn't work as described.
But i concluded that the physics they taught me in university is not enough to completely study this. Since i'm needing to add terms that were never combined together during lessons. A doctor would be able to do it.. i guess...
I wonder if the material was not good since was SS430
If the size were too small for the comparison
If there was screening of charge interfering...
and so on
Basically If the conductivity is high the electric field must be low... at least is what it seems!