Regarding a slight modification to the electric generator configuration

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Discussion Overview

The discussion revolves around the configuration of an electric generator, specifically the effects of rotating a magnet and a coil in opposite directions compared to a stationary coil with a moving magnet. The focus is on the relationship between relative motion and voltage generation, exploring theoretical implications and potential experimental outcomes.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions whether rotating a magnet and a coil in opposite directions would yield a higher voltage compared to a stationary coil and moving magnet configuration at the same RPM.
  • Another participant asserts that the voltage generated is determined by the relative speed between the magnet and the coil.
  • Some participants suggest that increased relative motion could lead to a stronger magnetic field and higher voltage induction, while noting that other factors like magnet strength and coil turns also influence voltage output.
  • A later reply emphasizes the need for further experimentation and analysis to fully understand the effects of this configuration on generator performance.

Areas of Agreement / Disagreement

Participants generally agree that relative motion is crucial for voltage generation, but there is no consensus on the extent of the impact of the proposed configuration changes or the specific outcomes without further experimentation.

Contextual Notes

Limitations include the need for clarification on assumptions regarding the strength of the magnetic field, the number of coil turns, and the specific RPM values being compared. The discussion does not resolve how these factors interact with the proposed configuration.

goodluckchuck
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suppose a magnet and a coil are made to rotate in the opposite direction relative to each other, will this result in a higher voltage at a rpm as against the stationary coil and moving magnet configuration at the same rpm ?
i've also attached a figure to illustrate the configuration.

https://www.physicsforums.com/attachment.php?attachmentid=48137&d=1339160808
 
Last edited:
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waiting for ur response people,ty.
 
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It's only the relative speed that determines the voltage generated.
 
exactly, which will be increased if they rotate in the oppposite direction.
 
This is an interesting concept and it could potentially result in a higher voltage output at the same rpm compared to the stationary coil and moving magnet configuration. This is because the relative motion between the magnet and coil would be increased, leading to a stronger magnetic field and inducing a higher voltage in the coil. However, other factors such as the strength of the magnet and the number of turns in the coil would also play a role in determining the voltage output. Further experimentation and analysis would be needed to determine the exact effects of this modification on the electric generator's performance.
 

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