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There are three combinations and two paradoxes:
1.) disk spins, magnet stationary -> induced current
2.) magnet spins, disk stationary -> no current (paradox 1)
3.) disk and magnet spin together -> induced current (paradox 2)
As I find Wikipedia explanation is lacking and leaves many questions open, I ask can anyone properly explain why there is induced current in the 1st and 3rd setup, and why there is no current induced in the 2nd setup?
There are three combinations and two paradoxes:
1.) disk spins, magnet stationary -> induced current
2.) magnet spins, disk stationary -> no current (paradox 1)
3.) disk and magnet spin together -> induced current (paradox 2)
As I find Wikipedia explanation is lacking and leaves many questions open, I ask can anyone properly explain why there is induced current in the 1st and 3rd setup, and why there is no current induced in the 2nd setup?
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