A motor design to defy Lenz' law?

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SUMMARY

The discussion centers on a proposed motor design that aims to circumvent Lenz's law by using two electrically isolated rotors that rotate along the same axis. The left rotor's motion generates currents in the right rotor, which is connected to a variable load. Concerns are raised about the cancellation of magnetic fields between the rotors and the implications for generator efficiency. Ultimately, the discussion concludes that the proposed design is unlikely to succeed due to the inherent opposing forces dictated by Lenz's law, making it difficult for the generator rotor to rotate freely.

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  • Understanding of Lenz's law in electromagnetism
  • Knowledge of rotor dynamics and magnetic fields
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  • Basic principles of electrical isolation in motors
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Narayanan KR
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motor design.png

1. The two rotors (purple, green) are electricaly isolated but mechanically fit to rotate along same axis
2. The motor action on the left side rotor will move the armature set, this will produce currents in right side rotor that will pass via a variable load.
3. do you see the magnetic fields of both rotors cancelling each other especially when the no. of turns are large
4. will this cancel lenz effect on generator side or both sides?
 
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You have a motor-generator pair and it does not even transform the voltage. Any time you cut magnetic flux with a conductor connected to a load such as the right side of your drawing you will have an opposing force on said conductor. In other words, it gets harder to push the conductor through. A heads up: Discussion of things of this nature are prohibited on PF. Thought I would explain why your scheme won't work though.
 
it is difficult to move rotor of generator because the magnetic field of induced current is opposing the rotation (lenz law) , but if that magnetic field is canceled by another adjecent rotor, then the question is will the generator rotor move freely in the field (the diagram shows only half a turn in each rotor, so please imagine more turns) .
 
Thread closed for Moderation...
 
Narayanan KR said:
it is difficult to move rotor of generator because the magnetic field of induced current is opposing the rotation (lenz law) , but if that magnetic field is canceled by another adjecent rotor, then the question is will the generator rotor move freely in the field (the diagram shows only half a turn in each rotor, so please imagine more turns) .
Your thread will remain closed. We do not allow challenges to mainstream science here. We do allow sincere questions about basic E&M, with the intent being understanding E&M better. Please PM me if you want to continue this discussion. It is too big of a potential waste of time to leave as a general discussion item. Thank you.
 

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