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On Thu, 4 May 2000, brian whatcott wrote:
If Robert believes that beginners expect twice the illumination from the
same electrical power input to a series parallel arrangement of four bulbs
as to a single bulb, does he give them too little credit, or do we give
him too much? :-)
Hmmm...I hope this is a false dilemma... :)
In any event, I asked because I was unclear on the set-up and thought
others might be also. In case anyone shared my confusion, my mistake was
that I interpreted Leigh's "four lights to be brighter" to mean that "each
light will be brighter". Now that I recognize my mistake, it makes sense
and I agree that beginning students (who assume R is constant) will guess
that the four lights *together *will be brighter than the one alone (but
that each individual light will be dimmer than the one alone). Thank you.