Could a DC Motor Work with Only Two Sides of Copper in the Magnetic Field?

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Discussion Overview

The discussion centers on the functionality of a DC motor when only two sides of a copper frame are placed within a magnetic field. Participants explore the implications of this configuration on the motor's operation, considering both theoretical and practical aspects of electromagnetic principles.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions whether a DC motor could operate with only two sides of the copper frame in the magnetic field, suggesting modifications to the frame or magnets.
  • Another participant challenges the initial premise, stating that without relative motion between the magnetic field and the conductor, the motor would not function.
  • A different participant reiterates that if the wire could rotate to face the same magnet, it would not produce mechanical power due to counteracting torque.
  • One participant introduces a speculative idea about a quantum gyroscopic effect influencing the motor's operation, suggesting that atomic behavior in the presence of a magnetic field could lead to current flow.

Areas of Agreement / Disagreement

Participants express disagreement on the feasibility of the motor's operation under the proposed conditions. While some assert that it would not work, others explore alternative theoretical explanations without reaching a consensus.

Contextual Notes

Participants rely on various assumptions about the behavior of magnetic fields and conductors, and the discussion includes unresolved questions about the mechanics of the proposed configurations.

Who May Find This Useful

This discussion may be of interest to those studying electromagnetism, motor design, or quantum effects in materials.

Brock
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see this set-up for a DC Motor
http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/motdc.html

If the sides of the copper frame were the only copper in the field, the motor would still work correct? (stretch the copper frame out, or thin the magnets) So now we have only two sides of the copper frame in the magnetic field. Now if those sides rolled so that the same face of the copper was always facing the same magnet, would the motor still work?
 
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What copper frame? What are you talking about?
 
Brock said:
see this set-up for a DC Motor
http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/motdc.html

If the sides of the copper frame were the only copper in the field, the motor would still work correct? (stretch the copper frame out, or thin the magnets) So now we have only two sides of the copper frame in the magnetic field. Now if those sides rolled so that the same face of the copper was always facing the same magnet, would the motor still work?

Based on the fact that the frame cannot rotate (it's the frame and is supporting everything), there is no relative motion between the magnetic field and the conductor (frame in your example), no, it will not work.
 
I mean the inducting copper in the picture, maybe "wire" is a better word for it.
 
Brock said:
see this set-up for a DC Motor
http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/motdc.html

If the sides of the copper frame were the only copper in the field, the motor would still work correct? (stretch the copper frame out, or thin the magnets) So now we have only two sides of the copper frame in the magnetic field. Now if those sides rolled so that the same face of the copper was always facing the same magnet, would the motor still work?


No. It would not. It's like asking if you jump up when you pull your boots on and then stand up before you touch the ground and jump up again, could you levitate upwards?
 
Brock said:
I mean the inducting copper in the picture, maybe "wire" is a better word for it.

If I understand what you are asking correctly, then no, it won't work. If the wire was able to rotate somehow and face the same magnet, then motor would not provide any mechanical power since it is free to rotate such that it counters the torque developed by the current flow and flux interaction.
 
Ok wanted to be sure about that, now here's another question, or theory.

Could it be that on a quantum scale that it's a gyroscopic effect that is causeing the motor to work? A diamagnetic effect happens to the copper, but that effect happens as if B is an axis. So B causes a net "spin", or whatever, in one direction, on the atom, and when the metal is turned in this, it's like turning billions of little gyroscopes, and so current flows as the reactant force?
 

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