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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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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Step 1
According to Faraday's Law of induction the induced emf is equal to the negative rate of change of magnetic flux.
e.m.f = -Nd(magnetic flux)/dt
e.m.f=-Nd(B.A)/dt
This concept is applied in electric motor. When we move a magnetic in the external magnetic field the due to change in area inside magnetic field, magnetic flux is changed resultant in e.m.f induced.
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