What makes electrons to be attracted by a magnetic field ? are electrons "small" magnets ? do they create a north and south pole so they are attracted by a magnet ?

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    $\begingroup$ In what situation are these electrons "attracted" by a magnetic field? $\endgroup$ Commented Dec 10, 2018 at 19:27
  • $\begingroup$ Lorentz force is perpendicular to magnetic field lines. $\endgroup$
    – Jasper
    Commented Dec 10, 2018 at 19:29
  • $\begingroup$ Maybe he has in mind Landau levels? $\endgroup$ Commented Dec 10, 2018 at 19:55
  • $\begingroup$ Maybe you’re asking about electron spin? $\endgroup$
    – ArthD21
    Commented Jul 22, 2022 at 16:36

1 Answer 1


An electron does have a dipole moment, much like a tiny bar magnet. A uniform magnetic field does not attract a bar magnet; it only exerts a torque on the magnet. A magnetic field that diverges, though, can attract a bar magnet (that is why two bar magnets can attract each other). Similarly, a diverging magnetic field can attract or repel an electron, depending on the orientation of the electron's dipole moment. See the Stern-Gerlach Experiment. However, a magnetic field does not exert any force on a non-moving charge; so can interact with a stationary electron only through the electron's dipole moment.


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