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Forums
Physics
Classical Physics
Electromagnetism
Why Does Current Produce a Magnetic Field But Not Vice Versa?
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[QUOTE="Dale, post: 5935522, member: 43978"] Jefimenko’s equations and the retarded potentials are pretty clear about the temporal and spatial ordering. A current here now causes a magnetic field elsewhere at the retarded time. You simply cannot swap the two roles. The cause preceeds the effect and the equation cannot be reversed to get the effect preceding the cause [/QUOTE]
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Forums
Physics
Classical Physics
Electromagnetism
Why Does Current Produce a Magnetic Field But Not Vice Versa?
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