I've been re-reading past threads regarding KVL (Kirchoff voltage Law).
Loosely speaking: "sum of measured voltages around a closed loop is
zero."
The law as stated above has limited applicability due to the existence
of non-potential voltages.
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My thought is that the law has general applicability if I re-interpret
it as the sum of electrical scalar potental differences around a loop.
I.e. sum of DELTA Phi around a closed loop.
( I note that in general this scalar potential is not sufficient to
determine E, but still exists, as E is determined in general from both
phi and time derivatives of the magnetic vector potential.)
However, (and this is a significant caveat),
While now a generally valid statement it is now of limited usefullness,
because we note that this is not saying the
Integral E DOT dl around the loop is zero for the general case and
therefore can not be related to volt meter readings.
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Comments? Critiques?
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Joel Rauber
Department of Physics - SDSU