There are an unclosed conductor, and two magnets that situated, as shown on the picture. Is there voltage between conductor's ends?

enter image description here

  • $\begingroup$ Yes, albeit infinitesimal - and it would not be measurable in a static condition, because any probes placed at each end would also be subject to the effect of the magnets and there would be no flow of current. The current would only flow when the magnets were moved (either to apply them or remove them). $\endgroup$ – Steve Jan 14 '18 at 21:35
  • $\begingroup$ @Steve, ok, if I will just change sides of magnets, will be there an (alternating?) current? $\endgroup$ – Артур Клочко Jan 14 '18 at 21:51
  • $\begingroup$ Yes, I think so $\endgroup$ – QuIcKmAtHs Jan 14 '18 at 21:55
  • $\begingroup$ @АртурКлочко, yes, a current will flow in principle if you move the magnets. $\endgroup$ – Steve Jan 14 '18 at 22:07
  • $\begingroup$ @Steve, so if I paste there a lamp, it, in principle should glow? $\endgroup$ – Артур Клочко Jan 14 '18 at 22:15

If the magnets are not moving with respect to the conductor, or the wire moving with respect to the magnets, there will be no voltage between the ends of the conductor.

  • $\begingroup$ But, as definition says, voltage - is a difference of potentials, and in the picture I have pinned, it is. And, as another definition says, voltage - is a work that does the electric field to move charges. Electric field is the same as magnetic field, so, my picture shouldn't be wrong. Yeah, I understand, that there is no current, but in the moment, when magnets comes to ends of wire electrons should move(come to north, and run away from south at the same time), so at this time interval there should be a current. No? $\endgroup$ – Артур Клочко Jan 15 '18 at 7:15
  • $\begingroup$ @ Artur - Are the magnets also charged electrically? What do the plus and minus signs signify in the picture? I assumed they indicate the polarity of the permanent magnets. $\endgroup$ – freecharly Jan 15 '18 at 13:21
  • $\begingroup$ No they don't charged electrically. Plus and minus means north and south $\endgroup$ – Артур Клочко Jan 15 '18 at 14:18
  • $\begingroup$ Conductor in english meaning, as far as I understand, is a material, that provides current. Metals are conductors. Wire consist of metal. Wire is conductor. In my illustration it's a simple solid wire $\endgroup$ – Артур Клочко Jan 15 '18 at 14:25
  • $\begingroup$ @Artur - And it is not a "perfect conductor" (superconductor)? The conductivity is finite, not infinite? $\endgroup$ – freecharly Jan 15 '18 at 14:30

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