Don (Resqcapt13):
Negative resistance would mean that you are creating power. I don't think that is possible
I guess that would be another way to describe it, but the term is being applied as to the characteristics of Plasma, and the way it becomes more conductive as the Plasma increases in size, along with the fact that there is no opposition to current flow.
To me, the term "Negative Impedance" may be better suited for the characteristics of a Plasma derived from an AC source.
The term "Negative Resistance" was used when I first began studying Plasmas and related Lighting (Discharge Lighting). It kind of stuck, and became the default term.
That was back in 1984.
Guess it's time to get a new term!
Scott35