To help point out the differences between EMF's and voltages we should note
that Kirchhoff's Loop Rule holds for voltage but NOT for EMF's. Asking
students why this is true is a good test of their understanding. (Asking
OURSELVES is a good test of OUR understanding!)
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Chuck Britton Education is what is left when
britton@odie.ncssm.edu you have forgotten everything
North Carolina School of Science & Math you learned in school.
(919) 286-3366 x224 Albert Einstein, 1936