Two questions about electron's magnetic spin











up vote
2
down vote

favorite
1













  1. Does electron's magnetic spin mean that we can think of it as having the two magnetic poles?


  2. Does the spin mean that it generates magnetic field even if it is at rest?



I expect to get 'no' to both questions because we always say moving charges generate magnetic field. And I hope to see answers which will clear my confusion.










share|cite|improve this question
























  • Possible duplicate of physics.stackexchange.com/questions/9969/… but I wrote a short answer, as it seems more appropriate for the OP to learn more from. (Hopefully)
    – StudyStudyStudy
    5 hours ago










  • @physicsguy19: the answer by Hans de Vries present in the link cited by StudyStudyStudy contains the answer to your question. n.2. The wavefunction of a charged particle with a non-zero spin carries a current which explains the magnetic dipole of the electron.
    – GiorgioP
    4 hours ago















up vote
2
down vote

favorite
1













  1. Does electron's magnetic spin mean that we can think of it as having the two magnetic poles?


  2. Does the spin mean that it generates magnetic field even if it is at rest?



I expect to get 'no' to both questions because we always say moving charges generate magnetic field. And I hope to see answers which will clear my confusion.










share|cite|improve this question
























  • Possible duplicate of physics.stackexchange.com/questions/9969/… but I wrote a short answer, as it seems more appropriate for the OP to learn more from. (Hopefully)
    – StudyStudyStudy
    5 hours ago










  • @physicsguy19: the answer by Hans de Vries present in the link cited by StudyStudyStudy contains the answer to your question. n.2. The wavefunction of a charged particle with a non-zero spin carries a current which explains the magnetic dipole of the electron.
    – GiorgioP
    4 hours ago













up vote
2
down vote

favorite
1









up vote
2
down vote

favorite
1






1






  1. Does electron's magnetic spin mean that we can think of it as having the two magnetic poles?


  2. Does the spin mean that it generates magnetic field even if it is at rest?



I expect to get 'no' to both questions because we always say moving charges generate magnetic field. And I hope to see answers which will clear my confusion.










share|cite|improve this question
















  1. Does electron's magnetic spin mean that we can think of it as having the two magnetic poles?


  2. Does the spin mean that it generates magnetic field even if it is at rest?



I expect to get 'no' to both questions because we always say moving charges generate magnetic field. And I hope to see answers which will clear my confusion.







electromagnetism electrons magnetic-moment






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited 5 hours ago









Emilio Pisanty

81k21194400




81k21194400










asked 5 hours ago









physicsguy19

692115




692115












  • Possible duplicate of physics.stackexchange.com/questions/9969/… but I wrote a short answer, as it seems more appropriate for the OP to learn more from. (Hopefully)
    – StudyStudyStudy
    5 hours ago










  • @physicsguy19: the answer by Hans de Vries present in the link cited by StudyStudyStudy contains the answer to your question. n.2. The wavefunction of a charged particle with a non-zero spin carries a current which explains the magnetic dipole of the electron.
    – GiorgioP
    4 hours ago


















  • Possible duplicate of physics.stackexchange.com/questions/9969/… but I wrote a short answer, as it seems more appropriate for the OP to learn more from. (Hopefully)
    – StudyStudyStudy
    5 hours ago










  • @physicsguy19: the answer by Hans de Vries present in the link cited by StudyStudyStudy contains the answer to your question. n.2. The wavefunction of a charged particle with a non-zero spin carries a current which explains the magnetic dipole of the electron.
    – GiorgioP
    4 hours ago
















Possible duplicate of physics.stackexchange.com/questions/9969/… but I wrote a short answer, as it seems more appropriate for the OP to learn more from. (Hopefully)
– StudyStudyStudy
5 hours ago




Possible duplicate of physics.stackexchange.com/questions/9969/… but I wrote a short answer, as it seems more appropriate for the OP to learn more from. (Hopefully)
– StudyStudyStudy
5 hours ago












@physicsguy19: the answer by Hans de Vries present in the link cited by StudyStudyStudy contains the answer to your question. n.2. The wavefunction of a charged particle with a non-zero spin carries a current which explains the magnetic dipole of the electron.
– GiorgioP
4 hours ago




@physicsguy19: the answer by Hans de Vries present in the link cited by StudyStudyStudy contains the answer to your question. n.2. The wavefunction of a charged particle with a non-zero spin carries a current which explains the magnetic dipole of the electron.
– GiorgioP
4 hours ago










2 Answers
2






active

oldest

votes

















up vote
4
down vote














Does electron's magnetic spin mean that we can think of it as having the two magnetic poles?




Yes. There are no known magnetic monopoles, see: Magnetic Monopoles




Does the spin mean that it generates magnetic field even if it is at rest?




Yes, but as regards "at rest", you should read this answer: Electron at rest



Magnetic spin isn't really a proper term, but an electron's spin is directly linked to its magnetic field, if we were to say that only moving electric charges produce magnetic fields, we would have trouble explaining how a static magnetic "works".



I would also stress that spin in this case is purely a mathematical idea, an electron does not resemble a very small rotating football in this case, its a bad choice of words made years ago.



If you read the links, you will get a better answer than this short reply.






share|cite|improve this answer










New contributor




StudyStudyStudy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

























    up vote
    2
    down vote













    The electron can be seen as a small magnet with the field of a magnetic dipole of strength $2mu_B vec S$. So my answer is yes in both cases. I interpret as at rest a state in which the electron has zero momentum expectation value. Note that there is no accepted model of spin as a rotation, although spin is an angular moment to every effect.






    share|cite|improve this answer























      Your Answer





      StackExchange.ifUsing("editor", function () {
      return StackExchange.using("mathjaxEditing", function () {
      StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
      StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
      });
      });
      }, "mathjax-editing");

      StackExchange.ready(function() {
      var channelOptions = {
      tags: "".split(" "),
      id: "151"
      };
      initTagRenderer("".split(" "), "".split(" "), channelOptions);

      StackExchange.using("externalEditor", function() {
      // Have to fire editor after snippets, if snippets enabled
      if (StackExchange.settings.snippets.snippetsEnabled) {
      StackExchange.using("snippets", function() {
      createEditor();
      });
      }
      else {
      createEditor();
      }
      });

      function createEditor() {
      StackExchange.prepareEditor({
      heartbeatType: 'answer',
      convertImagesToLinks: false,
      noModals: true,
      showLowRepImageUploadWarning: true,
      reputationToPostImages: null,
      bindNavPrevention: true,
      postfix: "",
      imageUploader: {
      brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
      contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
      allowUrls: true
      },
      noCode: true, onDemand: true,
      discardSelector: ".discard-answer"
      ,immediatelyShowMarkdownHelp:true
      });


      }
      });














      draft saved

      draft discarded


















      StackExchange.ready(
      function () {
      StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fphysics.stackexchange.com%2fquestions%2f444758%2ftwo-questions-about-electrons-magnetic-spin%23new-answer', 'question_page');
      }
      );

      Post as a guest















      Required, but never shown

























      2 Answers
      2






      active

      oldest

      votes








      2 Answers
      2






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes








      up vote
      4
      down vote














      Does electron's magnetic spin mean that we can think of it as having the two magnetic poles?




      Yes. There are no known magnetic monopoles, see: Magnetic Monopoles




      Does the spin mean that it generates magnetic field even if it is at rest?




      Yes, but as regards "at rest", you should read this answer: Electron at rest



      Magnetic spin isn't really a proper term, but an electron's spin is directly linked to its magnetic field, if we were to say that only moving electric charges produce magnetic fields, we would have trouble explaining how a static magnetic "works".



      I would also stress that spin in this case is purely a mathematical idea, an electron does not resemble a very small rotating football in this case, its a bad choice of words made years ago.



      If you read the links, you will get a better answer than this short reply.






      share|cite|improve this answer










      New contributor




      StudyStudyStudy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






















        up vote
        4
        down vote














        Does electron's magnetic spin mean that we can think of it as having the two magnetic poles?




        Yes. There are no known magnetic monopoles, see: Magnetic Monopoles




        Does the spin mean that it generates magnetic field even if it is at rest?




        Yes, but as regards "at rest", you should read this answer: Electron at rest



        Magnetic spin isn't really a proper term, but an electron's spin is directly linked to its magnetic field, if we were to say that only moving electric charges produce magnetic fields, we would have trouble explaining how a static magnetic "works".



        I would also stress that spin in this case is purely a mathematical idea, an electron does not resemble a very small rotating football in this case, its a bad choice of words made years ago.



        If you read the links, you will get a better answer than this short reply.






        share|cite|improve this answer










        New contributor




        StudyStudyStudy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
        Check out our Code of Conduct.




















          up vote
          4
          down vote










          up vote
          4
          down vote










          Does electron's magnetic spin mean that we can think of it as having the two magnetic poles?




          Yes. There are no known magnetic monopoles, see: Magnetic Monopoles




          Does the spin mean that it generates magnetic field even if it is at rest?




          Yes, but as regards "at rest", you should read this answer: Electron at rest



          Magnetic spin isn't really a proper term, but an electron's spin is directly linked to its magnetic field, if we were to say that only moving electric charges produce magnetic fields, we would have trouble explaining how a static magnetic "works".



          I would also stress that spin in this case is purely a mathematical idea, an electron does not resemble a very small rotating football in this case, its a bad choice of words made years ago.



          If you read the links, you will get a better answer than this short reply.






          share|cite|improve this answer










          New contributor




          StudyStudyStudy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.










          Does electron's magnetic spin mean that we can think of it as having the two magnetic poles?




          Yes. There are no known magnetic monopoles, see: Magnetic Monopoles




          Does the spin mean that it generates magnetic field even if it is at rest?




          Yes, but as regards "at rest", you should read this answer: Electron at rest



          Magnetic spin isn't really a proper term, but an electron's spin is directly linked to its magnetic field, if we were to say that only moving electric charges produce magnetic fields, we would have trouble explaining how a static magnetic "works".



          I would also stress that spin in this case is purely a mathematical idea, an electron does not resemble a very small rotating football in this case, its a bad choice of words made years ago.



          If you read the links, you will get a better answer than this short reply.







          share|cite|improve this answer










          New contributor




          StudyStudyStudy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.









          share|cite|improve this answer



          share|cite|improve this answer








          edited 5 hours ago





















          New contributor




          StudyStudyStudy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.









          answered 5 hours ago









          StudyStudyStudy

          1664




          1664




          New contributor




          StudyStudyStudy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.





          New contributor





          StudyStudyStudy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.






          StudyStudyStudy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.






















              up vote
              2
              down vote













              The electron can be seen as a small magnet with the field of a magnetic dipole of strength $2mu_B vec S$. So my answer is yes in both cases. I interpret as at rest a state in which the electron has zero momentum expectation value. Note that there is no accepted model of spin as a rotation, although spin is an angular moment to every effect.






              share|cite|improve this answer



























                up vote
                2
                down vote













                The electron can be seen as a small magnet with the field of a magnetic dipole of strength $2mu_B vec S$. So my answer is yes in both cases. I interpret as at rest a state in which the electron has zero momentum expectation value. Note that there is no accepted model of spin as a rotation, although spin is an angular moment to every effect.






                share|cite|improve this answer

























                  up vote
                  2
                  down vote










                  up vote
                  2
                  down vote









                  The electron can be seen as a small magnet with the field of a magnetic dipole of strength $2mu_B vec S$. So my answer is yes in both cases. I interpret as at rest a state in which the electron has zero momentum expectation value. Note that there is no accepted model of spin as a rotation, although spin is an angular moment to every effect.






                  share|cite|improve this answer














                  The electron can be seen as a small magnet with the field of a magnetic dipole of strength $2mu_B vec S$. So my answer is yes in both cases. I interpret as at rest a state in which the electron has zero momentum expectation value. Note that there is no accepted model of spin as a rotation, although spin is an angular moment to every effect.







                  share|cite|improve this answer














                  share|cite|improve this answer



                  share|cite|improve this answer








                  edited 4 hours ago









                  Emilio Pisanty

                  81k21194400




                  81k21194400










                  answered 4 hours ago









                  my2cts

                  3,8492416




                  3,8492416






























                      draft saved

                      draft discarded




















































                      Thanks for contributing an answer to Physics Stack Exchange!


                      • Please be sure to answer the question. Provide details and share your research!

                      But avoid



                      • Asking for help, clarification, or responding to other answers.

                      • Making statements based on opinion; back them up with references or personal experience.


                      Use MathJax to format equations. MathJax reference.


                      To learn more, see our tips on writing great answers.





                      Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


                      Please pay close attention to the following guidance:


                      • Please be sure to answer the question. Provide details and share your research!

                      But avoid



                      • Asking for help, clarification, or responding to other answers.

                      • Making statements based on opinion; back them up with references or personal experience.


                      To learn more, see our tips on writing great answers.




                      draft saved


                      draft discarded














                      StackExchange.ready(
                      function () {
                      StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fphysics.stackexchange.com%2fquestions%2f444758%2ftwo-questions-about-electrons-magnetic-spin%23new-answer', 'question_page');
                      }
                      );

                      Post as a guest















                      Required, but never shown





















































                      Required, but never shown














                      Required, but never shown












                      Required, but never shown







                      Required, but never shown

































                      Required, but never shown














                      Required, but never shown












                      Required, but never shown







                      Required, but never shown







                      Popular posts from this blog

                      flock() on closed filehandle LOCK_FILE at /usr/bin/apt-mirror

                      Mangá

                      Eduardo VII do Reino Unido