Michael Faraday's experiment that resulted in the first electric motor was based on the idea of movement between a magnetic object and an external magnetic field. What is the fundamental difference between his motor and a compass, which is also a magnetic object moving due to an external magnetic field?

Michael Faraday's experiment that resulted in the first electric motor was based on the idea of movement between a magnetic object and an external magnetic field. What is the fundamental difference between his motor and a compass, which is also a magnetic object moving due to an external magnetic field?

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