Re: LF: A puzzle for Monday

["James Moritz" <j.r.moritz@herts.ac.uk>]

Dear Andy, LF Group

At 08:46 11/11/2002 +0000, you wrote:
> You then conclude the internal circuit is
> either a Thevenin source (an ideal 1V voltage source with a 1-ohm series
> resistor) or a Norton source (an ideal 1A current source with a 1-ohm
> shunt resistor). Using standard laboratory equipment, how could you
> determine which one it is.
Well, it's hard to be certain, but if the box has a label on the back which 
says something like "use 275,000 AA cells - observe correct polarity", then 
it is probably the Norton current source one...
Cheers, Jim Moritz
73 de M0BMU