Magnetic moment of a loop formed by a revolving electron

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Discussion Overview

The discussion revolves around the magnetic moment of an electron moving in a magnetic field, specifically focusing on the implications of its motion and the resulting magnetic moment in relation to potential energy configurations. The scope includes theoretical considerations and conceptual clarifications regarding magnetic forces and moments.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant describes a scenario where an electron moves downward on a screen with a magnetic field directed outward, suggesting that the electron's motion creates a magnetic moment that opposes the magnetic field, leading to a maximum potential energy configuration.
  • Another participant reiterates the scenario but emphasizes that the velocity vector of the charged particle and the magnetic flux density are in opposite directions, leading to a claim that no magnetic force acts on the particle.
  • A later reply challenges the previous assertion about the absence of magnetic force, asking for clarification and further explanation of the concepts involved.

Areas of Agreement / Disagreement

Participants express differing views on the relationship between the electron's motion, the magnetic field, and the resulting forces. The discussion remains unresolved, with competing interpretations of the magnetic forces at play.

Contextual Notes

There are potential limitations in the assumptions made regarding the direction of forces and the definitions of magnetic moments. The discussion does not resolve these ambiguities.

blitz.km
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Consider a situation.

If an electron is moving on your computer screen from top to bottom and the magnetic field is acting outwards towards your face, the electron revolves in anti-clockwise direction..

So we can say that the current is flowing in clockwise direction.
Magnetic moment when visualized comes in direction opposite to magnetic field lines.. which is the condition for unstable equilibrium.
So, potential energy = maximum using the formula [tex]P.E. = - \vec{m} . \vec{B}[/tex]

How is this possible? How can a system arrange itself to a maximum energy configuration??
 
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Please help guys!
 
blitz.km said:
If an electron is moving on your computer screen from top to bottom and the magnetic field is acting outwards towards your face, the electron revolves in anti-clockwise direction..

Velocity vector v of q charged particle and the magnetic flux density B are in opposite direction on a line. qvXB=0. No magnetic force apply to revolve particle.

Regards.
 
sweet springs said:
Velocity vector v of q charged particle and the magnetic flux density B are in opposite direction on a line. qvXB=0. No magnetic force apply to revolve particle.

Regards.

no man you are going wrong here..
could some one please please check this out and explain.
 

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