This thread has been put into a certain wry perspective for me by a
question on paper 2 of the IB examination, which my students did on Monday
and I got to see today:
There is a plot of V vs I for a filament lamp, and in one line, for one
mark they had to "State whether or not the filament of the lamp obeys Ohm's
law"!
Mark
_____________________________________
Mark Sylvester
United World College of the Adriatic,
34013 Duino TS, Italy.
_____________________________________