Timeline for How long would it take for electricity to flow from one terminal to other, via a 1 LY long wire?
Current License: CC BY-SA 2.5
12 events
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| Mar 11, 2011 at 13:24 | comment | added | GJ. | @wayne: Only in unreal world. Such a ideal conductor doesn't exist. Any inductor has electric capacity and inductivity. So the response time si longer and the electron speed isn't anymore light speed but much lower. | |
| Mar 11, 2011 at 13:09 | comment | added | user2482 | So the answer is the speed of light? Something still feels like it is missing. | |
| Mar 11, 2011 at 13:01 | history | edited | GJ. | CC BY-SA 2.5 |
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| Mar 11, 2011 at 12:35 | comment | added | GJ. | @wayne: Of course no. The potential always take some time, actualy travel with light speed because is EM force. And that time you can calcolate if you know impedance of conductor. | |
| Mar 11, 2011 at 12:33 | comment | added | GJ. | @Georg: check my answer again and if you able to read formulas on wiki how to calcolate impedance of real conductor than you can become critic. I'm 100% right! | |
| Mar 11, 2011 at 12:28 | comment | added | user2482 | @GJ while the potential may take some time to reach across, does it not still count that at one side information is already known instantaneously and hence the immediate flow? Observing a change at the 'immediate' end would technically allow you to determine an event at the other end instantly, again violating FTL. | |
| Mar 11, 2011 at 12:26 | comment | added | Georg | @GJ You are talking about nonstationary conduction without knowing the simplest basics. | |
| Mar 11, 2011 at 11:48 | comment | added | GJ. | @Georg: I'm talking about electric (voltage) potentials. So current start to flow immediately and it takes some time to get potential (informations) to the other side of conductor!. | |
| Mar 11, 2011 at 11:44 | comment | added | GJ. | @wayne: Disagree, the only reason why current start flow is electric potential. So if electric potential (voltage) before we short-circuit both conductor ends isn't equal then current will start to flow and it takes some time to get potential (informations) to the other side of conductor! | |
| Mar 11, 2011 at 11:28 | comment | added | Georg | A conductor (super is not necessary) without capacity and inductance will conduct immediately! Thus it is nonsense. Capacity and inductance of conductors are a property of the space surrounding the conductor, the same property that causes light speed being what it is | |
| Mar 11, 2011 at 11:20 | comment | added | user2482 | It cannot start flowing immediately (see my clarification above, information violating FTL). | |
| Mar 11, 2011 at 11:06 | history | answered | GJ. | CC BY-SA 2.5 |