- #1
likephysics
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A moving electron causes a magnetic field. So any wire with current flow has mag field around it.
When a Permanent magnet is bought near a coil, current flows initially and then the induced mag field opposes the PM field.
For the induced field to exist, electrons must be flowing through the wire. correct?
When a Permanent magnet is bought near a coil, current flows initially and then the induced mag field opposes the PM field.
For the induced field to exist, electrons must be flowing through the wire. correct?