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Re: Controversial Exam Questions (WAS: R = V/I ?)



I think everybody knows what is going on with a lamp filament by now,
but now we need to decide what Ohm's Law is. I would say that Ohm's law
states that a wide variety of materials have the property that their
resistance is constant if they are held at a constant temperature. If
this were put to the test so that the filament of the bulb could be kept
at constant temperature I would suppose that its resistance would be
well defined and very nearly constant.

I don't suppose Ohm is entitled to a say in this?

Leigh