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As I understand, magnetic materials (ferromagnets, paramagnets and diamagnets) appear due to the polarization of it atoms or molecules. In other words, they exist because their atoms or molecules are polarized. This means that every magnet is just a consequence of the existence of electric dipoles.

From this statement it seems obvious that there cannot exist a magnetic monopole, since the very definition of magnetic field needs a dipole to be there. My question is, why then postulate the existence of a magnetic monopole? How would a magnetic monopole be different to a single electric charge?

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    $\begingroup$ To reopen this post (v2), consider to align main text and title and only ask 1 subquestion. $\endgroup$
    – Qmechanic
    Commented Mar 2, 2020 at 9:23
  • $\begingroup$ Rejected, but perhaps the intention is still interesting for you physics.stackexchange.com/questions/448870/… $\endgroup$ Commented Mar 4, 2020 at 18:17

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