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 Collapsing Magnetic fields

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triumph

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Join date : 2014-09-08

PostSubject: Collapsing Magnetic fields   Mon Sep 08, 2014 5:09 pm

I am trying to sort out what happens when an electrically generated magnetic field collapses. When the electric is stopped, does the field collapse like water falling from a stream exiting a hose that has been turned off, for example. Or is it gone instantaneously? The 2nd part seems to violate some laws of physics, as does the 1st part. Either way, there is an issue to be resolved.
If it collapses slowly when the source is gone, that means that there is a magnetic field in existence with no source, even for a brief time.
If it is gone instantly, is that an event that occurred faster than light speed?
Any experts with opinions out there?
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