Timeline for How current and potential propagate through electrical circuits?
Current License: CC BY-SA 4.0
14 events
| when toggle format | what | by | license | comment | |
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| Nov 6, 2020 at 18:00 | history | tweeted | twitter.com/StackElectronix/status/1324773552004960262 | ||
| Sep 24, 2020 at 19:15 | comment | added | alejnavab | Yes, it takes time for the current to start throughout the circuit. In circuit theory (analysis) we assume electromagnetic phenomena travel instantly throughout all conductors and inside elements, but in real life we know the maximum speed is that of the light, which is finite. In fact, in some cases you take this into account and model cables as transmission lines (this occurs when the frequency is too high and/or the length of the wires is too long); in basic circuits this isn't taken into account. | |
| Sep 24, 2020 at 19:11 | comment | added | alejnavab | Yes. In non-ideal conductors, there's an electric field and outside the conductor. And as far as I know, the one inside is stronger than the one outside. | |
| Dec 12, 2018 at 6:52 | history | edited | JRE | CC BY-SA 4.0 |
edited body; edited title
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| Dec 12, 2018 at 3:37 | answer | added | jonk | timeline score: 3 | |
| Dec 11, 2018 at 16:33 | comment | added | Raafat Abualazm | I want to known why it holds. I want to know what is actually happening? | |
| Dec 11, 2018 at 14:11 | comment | added | Chu | For a non-ideal conductor, Ohm's law holds. For an ideal conductor Ohm's law also holds, but you have the indeterminate form: \$ I =\frac{0}{0} \$, for \$ I=\frac{V}{R} \$, | |
| Dec 11, 2018 at 12:16 | answer | added | user136077 | timeline score: 1 | |
| Dec 11, 2018 at 9:39 | comment | added | Raafat Abualazm | I will see the reference | |
| Dec 11, 2018 at 9:39 | comment | added | Raafat Abualazm | Neither of the links answers my question. The first link doesn't discuss with the details I need and the other answer is utterly irrelevant. The second link talks about approximation. I understand the approximation, and I'm not talking about it. | |
| Dec 11, 2018 at 7:09 | comment | added | jonk | "Matter & Interactions," 3rd edition or later, Chabay and Sherwood (chapter 19, or so.) | |
| Dec 11, 2018 at 6:26 | comment | added | The Photon | Also related: Why are wires in simple circuits approximated as equipotentials?. | |
| Dec 11, 2018 at 6:23 | comment | added | The Photon | Part of your question is answered here: Is there no electric field inside a conductor? . It would probably make it more likely to get good answers if you edit out that part of the question and focus on the parts that aren't answered elsewhere. | |
| Dec 11, 2018 at 6:05 | history | asked | Raafat Abualazm | CC BY-SA 4.0 |