Like charges repel and unlike attract. Like magnetic poles repel and unlike attract. Since electricity and magnetism are fundamentally linked , is this attraction/repulsion due to the magnetic fields and electric fields linked. Is this interaction force a characteristic of the magnetic force or that of the electric force ?
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$\begingroup$ Neither. That's why it's called electromagnetism. It's the same for both forces. $\endgroup$– MaximCommented Apr 25, 2019 at 17:09
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$\begingroup$ Keep in mind that electric charges are not completely analogous to magnetic poles $\endgroup$– BioPhysicistCommented Apr 25, 2019 at 17:53
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1$\begingroup$ I'd say there is no reason for this, this is just how the Nature works. You can write the Coulomb's equation that will show you that same charges repel, but it's roundabout: the reason why the equation exist is that it captures the observed fact that like charges repel. You can go into more fundamental theories and e. g. derive Coulomb's law from QED, but this won't give you a reason either: QED is a more refined theory to describe what we see, and what we see is the suckers repel, and that's where it begins, not ends! $\endgroup$– kkm mistrusts SECommented Apr 26, 2019 at 7:28
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