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Physics, 11.03.2021 20:00 22emilyl530

A ferromagnetic material is subjected to a strong magnetic field and afterward acts as a permanent magnet. Why does this occur?
The magnetic field aligns the magnetic domains mainly in one direction.
The magnetic field gives the ferromagnetic material an electric charge.
Long-range electric currents circulating in the iron make it magnetic.
The motion of the iron nuclei produces a magnetic field.
Oh

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