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Electricity and magnetism?

Electricity and magnetism? - Physics Forum

Electricity and magnetism? - Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.


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Old 06-27-2009, 09:21 PM
Pipette Filler
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Default Electricity and magnetism?



I get how a changing current (AC) produces a changing magnetic field & how a current is induced when a conductor & magnetic field are moving in relation to one another, but I think I've confused myself concerning DC & magnetism. Do you have to have AC to produce a magnetic field, or can DC produce a 'stable' magnet. I think I'm getting confused over the fact that conductors & magnetic fields need to be moving to produce a current...
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