That's news to me! Would you care to expand on it?

If one could look at a carbon atom in isolation, how is
the conduction mechanism changed by the size of the
applied electric field?

"John Walton" wrote in message
...
Carbon composition resistors are not linear above a few hundred volts.
There are resistors specifically designed for this purpose.


"Airy R.Bean" wrote in message
...
I'd add a caveat that when dropping down from
the high voltage, do it with a chain of series resistors,
each physically separated from its neighbour so that you
don't get flash-over. i.e., restrict the voltage over each resistor to
less than a couple of hundred.