Can an EMF Induce a Magnetic Field in a Moving Metal Rod?

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SUMMARY

The discussion centers on the relationship between electromotive force (emf) and magnetic fields in the context of a moving metal rod within a magnetic field. It is established that while moving a metal rod in a magnetic field induces an emf, this emf alone does not generate a magnetic field. Instead, it is the resulting current from the induced emf that produces a magnetic field, which opposes the original magnetic field due to Lenz's Law. This principle explains the increased torque required when loads are connected to a DC generator.

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lockerman2007
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I want to ask a question about magnetic field.
If I move a metal rod in a magnetic field, an emf is induced in it,
will the emf produce a magnetic field ?
Actually, a magnetic field is produced by an electric field or a current ??
 
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If you move a metal rod in a magnetic field, an emf is induced. But that emf does not create any magnetic field. The emf can create current and in turn current will create magnetic field. The induced magnetic field will be against the original field. That's why when you plug in loads into a DC generator, the torque will be harder.
 
haiha said:
If you move a metal rod in a magnetic field, an emf is induced. But that emf does not create any magnetic field.

unless it is changing w.r.t. time.
 
That means the movement of electrons produce a magnetic field ?
Can we consider that for a emf to be induced, electrons should move to one side of the rod and at this small instant, a magnetic field is produced ?
 
Let immagine the magnetic field is infinite large, and the rod is moving for ever, so the emf is induced, but not any induced magnetic. Magnetic field is only caused by current or moving charges.
 

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