Timeline for In a circuit one light-second long, does it matter where in the circuit the switch is placed? [duplicate]
Current License: CC BY-SA 3.0
20 events
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| Nov 16, 2015 at 14:45 | vote | accept | JustLoren | ||
| Nov 14, 2015 at 11:47 | history | closed |
John Rennie Danu user36790 Sebastian Riese Kyle Kanos |
Duplicate of Is electricity instantaneous? | |
| Nov 13, 2015 at 17:40 | answer | added | Floris | timeline score: 2 | |
| Nov 13, 2015 at 17:39 | history | edited | JustLoren | CC BY-SA 3.0 |
added 366 characters in body
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| Nov 13, 2015 at 17:23 | comment | added | Floris | @JustLoren actually the second switch doesn't matter, but the capacitance does. In your example drawn, the inductance of the wire matters a great deal. I'll expand that into an answer. | |
| Nov 13, 2015 at 17:20 | comment | added | JustLoren | @JohnRennie: Both of those don't seem to answer the question I'm asking, which is about switch placement with regards to the source and length of wire. Maybe I'm naive and it doesn't matter. If that's the case, I'm open to that being the answer. | |
| Nov 13, 2015 at 17:19 | comment | added | JustLoren | @Floris: That one has the second switch, but is conflated by having both switches opened and closed at the same time. I'm wondering if the wire would have some kind of capacitive effect contributing to turning on the light sooner than 1 second. | |
| Nov 13, 2015 at 17:17 | review | Close votes | |||
| Nov 14, 2015 at 11:47 | |||||
| S Nov 13, 2015 at 17:13 | history | suggested | tmwilson26 | CC BY-SA 3.0 |
Added the image inline to the question
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| Nov 13, 2015 at 17:09 | comment | added | Floris | Relevant earlier question / answer: physics.stackexchange.com/q/215166/26969 | |
| Nov 13, 2015 at 17:04 | answer | added | Guy | timeline score: -5 | |
| Nov 13, 2015 at 17:04 | comment | added | SchrodingersCat | I don't think so. Wherever the switch is placed, the electric field travelling at $c$ will take time = $\frac{x}{c}$ where $x$ is the length of wire between battery and light including the turns on earth. | |
| Nov 13, 2015 at 17:02 | comment | added | John Rennie | See also Why the electric bulb turns on almost instantly when the switch is closed? and How can I calculate the wave propagation speed in a copper wire?. | |
| Nov 13, 2015 at 17:01 | review | Suggested edits | |||
| S Nov 13, 2015 at 17:13 | |||||
| S Nov 13, 2015 at 16:59 | history | suggested | SchrodingersCat | CC BY-SA 3.0 |
changed picture link
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| Nov 13, 2015 at 16:59 | review | Suggested edits | |||
| S Nov 13, 2015 at 16:59 | |||||
| S Nov 13, 2015 at 16:57 | history | edited | RedGrittyBrick | CC BY-SA 3.0 |
Clearer title
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| Nov 13, 2015 at 16:55 | review | Suggested edits | |||
| S Nov 13, 2015 at 16:57 | |||||
| Nov 13, 2015 at 16:52 | review | First posts | |||
| Nov 13, 2015 at 18:34 | |||||
| Nov 13, 2015 at 16:51 | history | asked | JustLoren | CC BY-SA 3.0 |