How copper discs rotating in a magnetic field travel into eddy currents
The magnetic field produced by a single moving positively charged charge is the macroscopic manifestation of the magnetic energy matter that the excess protons in it acquire from external forces. However, its magnetic energy matter is dependent on the charged quarks in it.
A physical field that transmits interactions between moving charges or currents, generated by the moving charges or currents, while acting as a force on other moving charges or currents in the generating field. A magnetic field is a form of matter.
Magnets and magnets exert forces and moments on each other through the magnetic fields each produces. An electric charge in motion produces a magnetic field. This is how eddy currents are generated with copper discs.
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