Timeline for Induction: How does the electrons in the coil know in which way the magnetic field is moving?
Current License: CC BY-SA 3.0
6 events
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| Dec 6, 2015 at 17:26 | comment | added | Timaeus | @user504882 And here all your talk about moving fields bites you again one last time. When I say a circulating electric field, I don't mean moving fields. I don't mean moving or changing electric fields. I mean a field arrangement at on moment that has nonzero circulation, I mean electric fields that can not come from a scalar potential. A circulating field is one that can make a windmill turn. The fields can be static but arranged to make a windmill with charges bailed in place on it circulate (e.g. spin). I'm sorry you don't see how my answer answers your question. Give details & I'll adjust | |
| Dec 6, 2015 at 17:21 | comment | added | Timaeus |
@user504882 As for your comment on magnetic fields, I worked really really hard to pick particular wording that was correct and there are a few ways to word it that are also correct (that take more space to say) but your phrases are not correct. Magnetic fields don't change because of time. I'm saying that magnetic fields change in or over time and they do so because of the arrangement of electric field vectors. And I'm trying to teach you that. So saying that you "don't see what arrangements of electric fields has to do with magnetism" just shows that you need to be taught.
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| Dec 6, 2015 at 17:16 | comment | added | Timaeus | @user504882 Its not subjective, it's 100% wrong. It's like asking whether the blue dot at the center of the monitor is moving or whether the color of the pixel there is turning from blue to to black while the one next to it turns from black to green. There isn't a blue dot moving, there was only one blue dot and only for an instant. And charges react to the field vector at the location where the charge is, an electronic would be pushed by an electric field vector even if it were the only charge in the universe. Don't say of course and then cite different physics, don't avoiding learning. | |
| Dec 6, 2015 at 9:18 | comment | added | Alpha_Pi |
"Time changing magnetic fields are associated with particular arrangements of electric fields." Are you referring to magnetic fields changed by time, or time changed by magnetic fields? Anyway, I don't see what arrangment of electric fields has to do with magnetism. As far as I know, it is the clockwise or anti-clockwise circular motion of electic fields which create magnetic fields of different polarity. Anyway, I don't see how this discussion answers my question in any way.
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| Dec 6, 2015 at 9:11 | comment | added | Alpha_Pi |
Whether magnetic fields move or not, I consider a purely subjective matter. It's like asking whether the pointer on the computer monitor is moving or whether it is only the color vector at that pixel changing. "Electrons and other charges react to the electric field vector at the location of the charge and to the magnetic field vector at the location of the charge. They do not react to vectors at other locations." Of course they do, like electrical charges repel and opposite attract.
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| Dec 4, 2015 at 7:33 | history | answered | Timaeus | CC BY-SA 3.0 |