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seen Nov 11 at 20:29

Nov
3
accepted How does the electric field pulse propagate during a change in the magnetic vector potential?
Nov
3
comment How does the electric field pulse propagate during a change in the magnetic vector potential?
I've clarified my question.
Nov
3
revised How does the electric field pulse propagate during a change in the magnetic vector potential?
added 456 characters in body; deleted 657 characters in body; deleted 30 characters in body
Nov
3
revised How does the electric field pulse propagate during a change in the magnetic vector potential?
added 456 characters in body; deleted 657 characters in body; deleted 30 characters in body
Nov
2
comment How does the electric field pulse propagate during a change in the magnetic vector potential?
I just discovered this is more problematic than I thought. Two different experiments come up with two different empirical values for the speed of propagation of an electric field. One is consistent with instantaneous propagation: Measuring Propagation Speed of Coulomb Fields arxiv.org/pdf/1211.2913v1.pdf and one is finite speed: Coulomb interaction does not spread instantaneously cds.cern.ch/record/468803/files/0010036.pdf
Nov
2
comment How does the electric field pulse propagate during a change in the magnetic vector potential?
Rob it is not avoided. The magnetic field is segregated from the propagating electric field pulse by the surface of the torus, which is the geometry of the Rogowski coil: A poloidally wound toroidal coil with $B$=0 and $A$≠0 everywhere outside the minor radius of the torus.
Nov
2
awarded  Commentator
Nov
2
comment How does the electric field pulse propagate during a change in the magnetic vector potential?
Rob, That would be another StackExchange question. A related question has already been asked, but not answered: "Measurement of speed of static electric field propagation?" physics.stackexchange.com/questions/101413/…
Nov
2
asked How does the electric field pulse propagate during a change in the magnetic vector potential?
Nov
2
comment What is canonical momentum?
Ted, Does your critique invalidate the answer? If so what is the correct answer to the original question?
Oct
11
accepted Railguns and Gauge Invariance
Oct
10
comment Railguns and Gauge Invariance
Feynman's vector potential lecture isn't "all in" on the vector potential but it is definitely "disgruntled" at definitions of "physicality" such as those posited by the critique of Cote and Johnson. Moreover, he does insist that there are times -- important times -- in the education of physicists when it would have been best to start with Maxwell in terms of the vector potential.. hyiq.org/Downloads/…
Oct
9
comment Railguns and Gauge Invariance
No offense taken. Do you have any idea as to why railgun development would lead them to a particularly intense interest in the vector potential, hence their "disgruntled physics" (which might also be used to describe Feynman's attitude toward the neglect of the vector potential in pedagogy as well as his protege Carver Mead).
Oct
9
revised Railguns and Gauge Invariance
Acknowledge the three versions to "Groupthink and the blunder of the gauges"
Oct
9
asked Railguns and Gauge Invariance
Sep
24
awarded  Autobiographer
Sep
23
comment Have the Rowan University “hydrino” findings been replicated elsewhere?
Mills claims that 95% of the hydrogen in the universe is, indeed, below the "false" ground state and is now known as "dark matter".
Sep
7
awarded  Curious
Sep
7
revised Dimensional Analysis in Electromagnetism (SI vs Gaussian-cgs)
deleted 147 characters in body; edited title
Sep
7
accepted Dimensional Analysis in Electromagnetism (SI vs Gaussian-cgs)