Science Physics Electromagnetism
How does the idea of magnetic fields arising from circulating currents relate to permanent magnets?
Electrons have an intrinsic angular momentum, which is called spin. It is as if a electron is a rotating ball of electric charge. The directon of the spin is what the rotation axis would be.
In a permanent magnet some fraction of the electron spins are alligned. This is like having a lot of circular currents that are all generating magnetic fields in the same direction.
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