Timeline for Are Kirchhoff's Laws violated in case of varying magnetic field?
Current License: CC BY-SA 4.0
12 events
| when toggle format | what | by | license | comment | |
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| Nov 11, 2018 at 16:30 | comment | added | Gallifreyan | It'd be interesting to see answers addressing the recent videos by ElectroBOOM and a follow-up by Lewin | |
| Nov 9, 2018 at 13:16 | comment | added | Nicolas | Well, in the presence of varying electric fields, both the gradient of electric potential (as usual) and the time derivative of magnetic field contribute to pushing electrons. This second term, which cant be accounted for by an electric potential, is described as "electromotive force" over all loops in the circuit. | |
| Nov 9, 2018 at 5:11 | comment | added | Utkarsh Verma | @AlfredCentauri This is the first time I'm hearing of limitations of Kirchoff's laws, I gave the link you referred a read, but it didn't help. Could you please explain it to me with respect to the issue here? | |
| Nov 9, 2018 at 5:07 | comment | added | Utkarsh Verma | @K_inverse Could you please elaborate it? | |
| Nov 8, 2018 at 15:26 | comment | added | K_inverse | @Nicolas Absolutely, but $\phi$ here is not the same as the electrical potential that we used to in magnetostatic case. | |
| Nov 8, 2018 at 14:46 | answer | added | Daniel Turizo | timeline score: 3 | |
| Nov 8, 2018 at 13:14 | comment | added | Nicolas | @K_inverse Actually it can still be defined, and it is related to electric field by $\mathbf E=-\partial_t \mathbf A- \mathbf\nabla \phi$ where $\mathbf A$ is the vector potential | |
| Nov 8, 2018 at 13:01 | answer | added | Emilio Pisanty | timeline score: 7 | |
| Nov 8, 2018 at 12:42 | history | edited | Emilio Pisanty | CC BY-SA 4.0 |
deleted 1 character in body; edited title
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| Nov 8, 2018 at 12:40 | comment | added | Alfred Centauri | You're aware that Kirchhoff's circuit laws are approximations that hold exactly only in the non-time varying, lumped element limit? See Kirchhoff's circuit laws:Limitations | |
| Nov 8, 2018 at 11:55 | comment | added | K_inverse | In fact, when there is changing B field, the usual electrical potential cannot be defined. | |
| Nov 8, 2018 at 11:23 | history | asked | Utkarsh Verma | CC BY-SA 4.0 |