Creating a Magnetic Field Like Pic-2: Possible?

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Discussion Overview

The discussion centers around the feasibility of creating a magnetic field similar to that depicted in a referenced image (pic-2). Participants explore theoretical and practical aspects of magnetic fields, particularly in relation to solenoids and the implications of Gauss' law for magnetism.

Discussion Character

  • Debate/contested

Main Points Raised

  • One participant questions the possibility of creating a magnetic field like that in pic-2.
  • Another suggests that a solenoid could approximate such a magnetic field.
  • A different participant asserts that creating such a field is impossible.
  • One comment likens the field to half of a monopole, emphasizing its impossibility.
  • There is a discussion about the B-field of a current-carrying solenoid, with some suggesting it resembles the field in pic-2 locally, but noting that it loops around.
  • A participant points out that the field depicted in pic-2 violates Gauss' law for magnetism, contrasting it with the properties of solenoids, which maintain zero divergence.

Areas of Agreement / Disagreement

Participants express differing views on the possibility of creating the magnetic field in question. Some propose that a solenoid could provide a similar field, while others firmly reject the feasibility of such a field, indicating a lack of consensus.

Contextual Notes

The discussion involves assumptions about the nature of magnetic fields and their compliance with established physical laws, such as Gauss' law for magnetism. There are unresolved questions regarding the specific characteristics of the magnetic field in pic-2 and its comparison to solenoids.

sameev29
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Is it possible to create a magnetic field like the one in pic-2?
 

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solenoid? approximately i guess
 
Uh... NO.
This cannot be done.
 
Looks like half of a monopole.

Exceedingly impossible.
 
issn't the B-field of a current carrying solenoid something like that?
 
quietrain said:
issn't the B-field of a current carrying solenoid something like that?

Locally, yes, but it does loop around to the other end of the solenoid.

That is, If you look very close to one of the ends of the drawing in fig 1, it looks like fig 2.
 
The one way field shown violates Gauss' law for magnetism, i.e. it has non-zero divergence. Solenoids do not violate Gauss' law for magnetism, i.e. they have zero divergence everywhere.
 

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