Timeline for Transmit DC power with one cord?
Current License: CC BY-SA 3.0
15 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 14, 2013 at 1:23 | answer | added | Selene Routley | timeline score: 2 | |
| Dec 14, 2013 at 0:52 | answer | added | user16035 | timeline score: 1 | |
| Dec 13, 2013 at 22:38 | comment | added | Brandon Enright | @QuoraFea Headphones use two (actually three for stereo headphones) conductors. It just looks like one wire because they're bundled up together. | |
| Dec 13, 2013 at 22:37 | comment | added | Quora Feans | Ground return or Single-wire earth return is the answer I was searching for. | |
| Dec 13, 2013 at 22:36 | history | edited | Quora Feans | CC BY-SA 3.0 |
clarity
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| Dec 13, 2013 at 22:36 | comment | added | John Dvorak | I think that ground return is still used for rail transport | |
| Dec 13, 2013 at 22:34 | comment | added | dmckee --- ex-moderator kitten | The system @Jan describes is called "ground return" and was used for telegraph transmission quite a lot in the early days. | |
| Dec 13, 2013 at 22:34 | comment | added | Brandon Enright | @JanDvorak in that case the ground would be acting as the second "wire". A loop is required. | |
| Dec 13, 2013 at 22:34 | comment | added | John Dvorak | of course, if your device is grounded, then one wire suffices in theory | |
| Dec 13, 2013 at 22:32 | comment | added | John Dvorak | If you mean one wire, then no. The device would be accumulating (or losing) electrons. Even one wire / AC is very inefficient (the environment has to serve as the second wire, but it's not connected in a conductive way) | |
| Dec 13, 2013 at 22:31 | comment | added | Quora Feans | Well, but why can't you transmit electric energy with just one? Imagine it were heat. You could be able to transmit it with just one cord. | |
| Dec 13, 2013 at 22:30 | comment | added | John Dvorak | If you mean one cable, then that's what most devices are powered by | |
| Dec 13, 2013 at 22:29 | comment | added | Brandon Enright | What do you mean by "one cord" or "two cords"? All electric devices need an input and an output (high voltage and low voltage) because they're all part of a current loop. | |
| Dec 13, 2013 at 22:28 | history | edited | Brandon Enright | CC BY-SA 3.0 |
deleted 2 characters in body; edited tags
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| Dec 13, 2013 at 22:28 | history | asked | Quora Feans | CC BY-SA 3.0 |