Timeline for How does a current cause a voltage?
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
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| Mar 19, 2020 at 6:05 | answer | added | anna v | timeline score: 0 | |
| Mar 18, 2020 at 23:01 | history | edited | dts | CC BY-SA 4.0 |
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| Mar 18, 2020 at 20:12 | comment | added | Solomon Slow | Think of a "current source" as a voltage source that instantaneously, and automatically adjusts is output voltage as high or as low as needed to keep the current constant. | |
| Mar 18, 2020 at 19:15 | comment | added | my2cts | @S V Ohm and his followers, to which I belong, disagree. | |
| Mar 18, 2020 at 18:53 | answer | added | niels nielsen | timeline score: 1 | |
| Mar 18, 2020 at 18:51 | history | edited | Qmechanic♦ |
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| Mar 18, 2020 at 18:49 | comment | added | user137661 | In short, you are trying to explain a complex coupled phenomenon with the simplest of all equations. That just wont cut it. | |
| Mar 18, 2020 at 18:49 | comment | added | my2cts | A current that meets resistance will lead to a concentration gradient, hence see my previous comment. | |
| Mar 18, 2020 at 18:48 | comment | added | user137661 | The case of diffusion is very similar to electric currents. Electric currents are caused by an electric potential difference, on the other hand, diffusion is caused by chemical potential differences. The problem here is that you are considering a coupled physical phenomenon and the elementary Ohm's law is not going to work well with that. You'd have to couple the macroscopic version of Maxwell's equations with the diffusion equations (e.g. Fick's laws for simple diffusion) and possibly even Cauchy's laws of motion for continuum mechanics and the equation of energy. | |
| Mar 18, 2020 at 18:47 | comment | added | my2cts | A concentration gradient of charges implies an electric field and a voltage difference. | |
| Mar 18, 2020 at 18:35 | history | asked | dts | CC BY-SA 4.0 |