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Re: Favorite Test Questions


Light bulb filaments are made of tungsten. Tungsten is a metal. Metals are
ohmic substances. Ohmic substances obey Ohm's law. What it *means* to
obey etc.

All very true.

But in the demo of different wattage bulbs in series and parallel,
and if you need to know the maximum transient current at startup,
Ohm's law doesn't seem to work very well, at least to an unsophisticated
student, which is why I threw in the comment.


Clarence Bennett
Oakland University
Rochester, Michigan
248 370 3418
http://www3.acs.oakland.edu/physics/staff_info/Bennett.htm