Permanent magnet motor working on repulsion force

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Discussion Overview

The discussion revolves around the functioning and longevity of a permanent magnet motor that operates based on the repulsion of north poles. Participants explore the implications of energy usage during this repulsion process and the feasibility of such a motor in terms of perpetual motion concepts.

Discussion Character

  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant questions the lifespan of a permanent magnet motor that relies on the repulsion of north poles and whether energy is wasted in this process.
  • Another participant requests a diagram to clarify the concept being discussed.
  • A participant explains that while two north poles repel each other, the energy required to bring them together exceeds the work that can be extracted from them, suggesting that motion generated externally will convert into heat rather than useful work.
  • The same participant emphasizes that there is no such thing as a perpetual motion machine, noting that any energy used will be partially converted into movement and the rest lost to friction and electromagnetic waves.
  • A later reply reiterates the initial question about the motor's lifespan and energy usage, while also stating that discussions on perpetual motion machines or free energy are not permitted in the forum.

Areas of Agreement / Disagreement

Participants express disagreement regarding the feasibility of a perpetual motion machine, with some asserting that such concepts are not valid within the context of the discussion. The conversation remains unresolved regarding the specifics of energy usage in the proposed motor.

Contextual Notes

The discussion includes assumptions about energy conversion and the mechanics of the proposed motor, which are not fully explored or resolved. There are references to external resources that outline the forum's stance on perpetual motion and free energy, indicating limitations in the discussion's scope.

faisal5455
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Sir what would be the life of permanent magnet motor which runs by the repulsion of north pols. Is magnets energy wasted during this repulsion process or not. Because it continuously work on repulsion of two north pols.
 
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Can you draw a diagram to show what's in your mind?
Something like this?
attachment.php?attachmentid=69876&stc=1&d=1400403683.png
 

Attachments

  • hhhu.png
    hhhu.png
    384 bytes · Views: 864
diagram

magneticdiagram.jpg
 
Two (or more) North Poles will exert a repulsion on each other. This repulsive force can be converted into useful work. The amount of energy used to bring the two poles together will be MORE than the amount of work extracted from them. That is, you will be converting motion (generated externally) into heat. There is no such thing as a perpetual motion machine.
The diagram you added shows NO moving parts. If I assume that the two disks are spinning on the shaft, then the bearing surface will wear, but the amount of wear per revolution obviously depends on the materials of construction. The two disks will quickly stop, converting most of the energy you used to start them spinning into heat (friction) but some into electromagnetic waves.
To repeat the obvious, what ever energy you use to spin the disks will be only partially converted into movement of the shaft (if the shaft is also rotating). There is no such thing as a perpetual motion machine.
 
Last edited:
faisal5455 said:
Sir what would be the life of permanent magnet motor which runs by the repulsion of north pols. Is magnets energy wasted during this repulsion process or not. Because it continuously work on repulsion of two north pols.

Welcome to the PF. We do not discuss perpetual motion machines (PMMs) or "free energy" here at the PF. That is in the Rules (see Site Info at the top of the page). Thread is locked.

PF Forbidden Topics said:
Pseudoscience, such as (but not limited to):

Perpetual motion and "free energy" discussions
http://wiki.4hv.org/index.php/Free_Energy_Debunking
http://en.wikipedia.org/wiki/Perpetual_motion
http://www.skepdic.com/freeenergy.html
http://www.skepdic.com/perpetual.html
 

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