- #1
brian.green
- 27
- 2
I read many different explanation but none of them is satisfying.
There is two cases:
1. I move an iron rod in a magnetic field, between two bar magnet for example.
To this case I read that when I move the rod the electrons on it also move and moving charges produce magnetic field which interact with the external B field. I think this is impossible because those electrons don't move locally just relatively. This cannot produce net magnetic field arround the rod just allign the spin of the electrons. Maybe this B field interact with the external one?
2. Iron core of a transformer transfer the energy.
In this case electrons in the secondary winding don't move at all. Allign to the external B field but just due to its spin magnetic moment. Just the spin allign and e- doesn't move at all. What causes the charge separation?
There is two cases:
1. I move an iron rod in a magnetic field, between two bar magnet for example.
To this case I read that when I move the rod the electrons on it also move and moving charges produce magnetic field which interact with the external B field. I think this is impossible because those electrons don't move locally just relatively. This cannot produce net magnetic field arround the rod just allign the spin of the electrons. Maybe this B field interact with the external one?
2. Iron core of a transformer transfer the energy.
In this case electrons in the secondary winding don't move at all. Allign to the external B field but just due to its spin magnetic moment. Just the spin allign and e- doesn't move at all. What causes the charge separation?
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