how do electric dynamos create electricity simply from a few magnets and copper wiring?
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Because electricity and magnetism are tied together through a process called “induction”.
When a wire has electricity through it, it “induces” a magnetic field around the wire. This is how electromagnets work, lining up the wire in a certain way to amplify the magnetic field created when you run electricity through it.
And, the opposite is true, the same way moving electrons can create a magnetic field, a moving magnetic field and cause electrons to move.
That’s how a dynamo works, instead of electric wire creating a magnetic field, you take a magnet, Surround it by a coil of wire, and then spin the magnet which causes its magnetic field to spin which causes electrons in the wire to start moving, generating electricity.
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