How Does an Electric Field Affect Magnetic Dipole Direction?

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    Electrcity Magnetism
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Discussion Overview

The discussion revolves around the interaction between electric fields and magnetic dipoles, particularly focusing on whether an electric field can influence the direction of electron spin and, consequently, the magnetic field direction. The scope includes conceptual exploration and technical reasoning related to electromagnetism.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants propose that an electric field created by a potential difference could change the direction of electron spin, which might affect the magnetic dipole orientation.
  • Others argue that the relationship between electric fields and electron spin is not straightforward, suggesting that electric fields do not necessarily influence electron spins or magnetic fields directly.
  • A participant questions whether the strength of a magnetic field is sufficient to orient spins or if it only causes precession around an axis.
  • Another participant emphasizes that the value of spin for an elementary particle is fixed and cannot be altered, but the direction of spin might be influenced by external fields.
  • One participant expresses uncertainty about the implications of changing electric field direction on magnetic field direction and seeks clarification on how these interactions occur.

Areas of Agreement / Disagreement

Participants express differing views on the influence of electric fields on electron spin and magnetic dipoles. There is no consensus on whether electric fields can change the direction of spin or how this relates to magnetic fields.

Contextual Notes

Some statements rely on assumptions about the nature of electric and magnetic fields, and there are unresolved questions regarding specific experimental contexts that could clarify these interactions.

harjot singh
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magnetism and electrcity!

according to me as i think that when an electric field is created by creating a potential difference ,the force from the electric field changes the direction of spin maybe due to which the opposite effects takes place from magnetic field because magneticdipole becomes opposite.that's why,please explain me my problem here
 
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Your problem is that what you have written is incomprehensible.
 
harjot singh said:
according to me as i think that when an electric field is created by creating a potential difference ,the force from the electric field changes the direction of spin maybe due to which the opposite effects takes place from magnetic field because magneticdipole becomes opposite.that's why,please explain me my problem here
Only you know what's your problem.How will I know what is in your mind.What's your question?
 
If you want to learn more about electric fields and electricity I suggest the old 1940s-50s documentaries. I think you are talking about how transformers turn dc into ac.
 
But please consider my point even,i am saying that, "cant it happen like this that electric field could change the spin of electron moving in that particular direction due to their force" ?
 
or try here,

http://en.wikipedia.org/wiki/Spin_(physics )
maybe this is what you are asking??

The value of spin for an elementary particle depends only on the type of particle, and cannot be altered in any known way (in contrast to the spin direction described below).
edit: Harjot, you are aware 'SPIN" is a magnetic phenomenon, right, not electrical [not like charge] ? That's why in the MRI article, for example, they discuss a magnetic field rather than an electric field.
 
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I doubt that guessing what harjot singh means will get us very far. Let him explain it, please.
 
I was talking about the direction of spin and not the value.Very sorry for misconception and is direction of spin changes?otherwise please explain me,"how by changing electric field direction,the magnetic field direction i.e magnetic dipole also changes"? because if we are putting simply that due to change in electric field direction,the magnetic field direction also change,but it has to affect the electron's spin direction by any means and then only it can change magnetic field ...? but if i am wrong please do correct me!

Regards
Harjot Singh
 
  • #10
In general, electric fields don't (have to) influence the direction of electron spins, or the direction of magnetic fields. If you have some specific experiment in mind, please tell us which one.
 
  • #11
Maybe what is being asked is whether the magnetic field itself is sufficiently strong to orientate the spins along that axis? My understanding is that it's not strong enough to do that but only causes a precession about that axis.. is that correct?
 
  • #12
I doubt that guessing what harjot singh means will get us very far. Let him explain it, please.
 
  • #13
Jilang said:
Maybe what is being asked is whether the magnetic field itself is sufficiently strong to orientate the spins along that axis? My understanding is that it's not strong enough to do that but only causes a precession about that axis.. is that correct?

Actually Jilang is correct to a certain point,what i was actually making in my question was that are those electric fields can provide the electron (moving towards them) enough "energy" that it can flip its spin direction ?
 

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