For this case:

enter image description here

The two wires will experience a Lorentz force that will pull them towards one another(i.e attraction) from the countless examples, it's due to the magnetic fields of each wire "interacting" with the currents of each wire. However, beyond that can there be another electro-magnetic force?

If we introduced an exterior contact force $F_c$ that will move one of the wires($\pm z$ or $\pm y$) can there be a force that resist it?

Different view:

enter image description here

In other words, if one of the wires were to move in a different axis different than the one where the Lorentz force exists(in case of the initial diagram( within $x$) can it do so freely?

  • $\begingroup$ I can answer the 1st part but I don't get what you are trying to say in 2nd question $\endgroup$
    – Shashaank
    May 20, 2017 at 5:02
  • $\begingroup$ @Shashaank edited the question, to keep the first part only. I couldn't ask the second one correctly $\endgroup$
    – Pupil
    May 20, 2017 at 17:28
  • $\begingroup$ I don't know if this is what you mean, but note that if you start to move a wire, the velocity of the charges in it will be changed and so the force acting on them will in general change, in particular the direction of the force may change. $\endgroup$
    – diracula
    Jun 30, 2017 at 7:38

1 Answer 1


There are two equal forces which act relative to each other and there is no net force generated...


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