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Magnetic Properties of a Sphere Assembled from Pyramid-Shaped Bar Magnets

iagre 28212 10
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 9645865
    iagre
    Level 35  
    I will take a bar magnet and hew / form it into a pyramid. I will form many of these magnets and they will all fit together perfectly. I will combine all these magnets together and as a result I will get a sphere with one magnetic pole inside and the other on the entire outer surface - just like in this picture:
    Magnetic Properties of a Sphere Assembled from Pyramid-Shaped Bar Magnets
    In this case, the lines of force of the magnetic field will have access from one pole to the other only through the interior of such a magnetic sphere. Does this mean that it will lose its magnetic properties on the outside or will it still act like a magnet on the outside? What will the properties of such a ball be? How will it affect other magnets, including other similar spheres (both polar and vice versa)?
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  • #2 9645930
    me_super
    Level 29  
    iagre wrote:
    I will take a bar magnet and hew / form it into a pyramid. I will form many of these magnets and they will all fit together perfectly. I will combine all these magnets together and as a result I will get a sphere with one magnetic pole inside and the other on the entire outer surface - just like in this picture


    You won't connect them because they will repel each other.
  • #3 9645938
    excray
    Level 41  
    With a magnetic field as with a little current. Lines of force run from one pole to the other. So, draw for yourself how the lines of force will run in your case. And if the outside of the sphere is not there, the ball will behave like an ordinary non-magnetized piece of metal.
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  • #4 9645945
    iagre
    Level 35  
    I will connect with glue or welding ;) But not only the combination of the properties of such a system is important here.
  • #5 9646475
    bmserwis
    Level 36  
    Feel free to read the physics textbook, and then ask these types of questions.
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  • #6 9648930
    iagre
    Level 35  
    In the physics textbook I can read about magnetism but I will not read the answer dedicated to this question (formulated as such).
  • #7 9648939
    bmserwis
    Level 36  
    After reading the textbook, the answer to the question formulated in this way is enough, a little bit of your own analysis is enough.

    Added after 1 [minutes]:

    I recommend that you read the introductory lectures on electromagnetism and get acquainted with the concept of Monopoly and Maxwell's equations.
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  • #8 9649726
    iagre
    Level 35  
    Earlier I did not come across the term "magnetic monopoly" but now I searched and found on Wikipedia the following text:
    Quote:
    Magnetic monopoly - hypothetical particle introduced in 1931 [Dirac PAM, Proc. Roy .. Soc., A133, 60 (1931)] by Paul Adrien Maurice Dirac, having only one magnetic pole. Its existence is predicted by some theories grand unification.

    Quote:
    Magnetic monopoly and electric charge

    Although no experience has shown the existence of monopolies, this this is indicated by a serious premise theoretical. Paul Dirac showed that the existence of even one magnetic monopoly in the universe explains the problem of quantization of the electric charge ...


    No scientist has yet managed to confirm the existence of natural monopolies, but I have also never heard of anyone trying to create an artificial monopoly.

    Or such a ball (in the picture in the first post of this topic) can be considered a monopoly? How will it affect other magnetic objects?
  • #9 9649809
    excray
    Level 41  
    Buddy, it won't be a monopoly. I already wrote to you that such a ball in an ideal situation would behave like an ordinary non-magnetized piece of iron and in practice it will probably have residual magnetization. Such systems are quite real in everyday life in a soft magnetic ferromagnetic.
  • #10 9651888
    młodyeltronik
    Level 11  
    Read about Gauss's law for magnetism. The total flux is always 0 for double-pole magnets, and it will be so in this case as well.

    What you have drawn is not a magnetic monopoly. It is for magnetic monopoles that the Gaussian law of magnetism will not be fulfilled, that is, the total flux will be different from 0.
  • #11 9652021
    robokop
    VIP Meritorious for electroda.pl
    It's the same as with a stick - it always has two ends, and when you bend it into a circle, it has no end.

Topic summary

The discussion revolves around the concept of creating a unipolar magnet by forming bar magnets into a pyramid shape and assembling them into a sphere with one magnetic pole inside and the other on the outer surface. Participants debate the magnetic properties of such a configuration, with some asserting that the sphere would behave like a non-magnetized piece of metal due to the nature of magnetic field lines. The concept of magnetic monopoles is introduced, with clarification that the proposed sphere does not qualify as a magnetic monopole, as it would still adhere to Gauss's law for magnetism, which states that the total magnetic flux is always zero for dipole magnets. The conversation emphasizes the need for a deeper understanding of electromagnetism and the limitations of creating artificial magnetic monopoles.
Summary generated by the language model.
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