Recent content by euanos

Do new lines of force appear over distances at a rate faster than what light is traveling? What is the relationship between those unclosed magnetic field lines around a toroidal surface and magnetic eddys?

But close on what? The same source, or another source. Does it happen instantaneously? Is there ever a point when the field lines are incomplete?

The dramatic lines of force of a magnetic field demonstrated by iron filings in so many introductory texts suggests a problem: A magnetic field is never something that has a process of forming; it is always complete with lines of force: it can change, increase, vanish as in an EM field but never...