Timeline for Calculation for the distance between maximum swings in the drift distance of electrons
Current License: CC BY-SA 4.0
15 events
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| Jan 5, 2020 at 23:59 | history | edited | The Pointer | CC BY-SA 4.0 |
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| Jan 5, 2020 at 23:49 | comment | added | The Pointer | Furthermore, Phillip says "The stuff in the shaded box headed "12 gauge copper.." in the page that you reproduce is about a wire that carries a constant current. It doesn't seem relevant to your question." I wonder if perhaps this is where the authors confused themselves and made an error? | |
| Jan 5, 2020 at 23:48 | history | edited | Elliot Alderson | CC BY-SA 4.0 |
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| Jan 5, 2020 at 23:45 | comment | added | The Pointer | Ok, according to Phillip Wood's answer physics.stackexchange.com/a/523322/141502, it seems that my calculation of \$0.00000221781m/s\$ is actually for direct current, which is precisely what Bruce said, and not relevant to the calculation of the distance between maximum swings in the drift distance for alternating current. | |
| Jan 5, 2020 at 23:04 | comment | added | The Pointer | @BruceAbbott Ok, I just noticed that this calculation is for the maximum drift velocity during an alternating current cycle, whereas what we're trying to find is the distance between maximum swings in the drift distance for alternating current. I seem to have confused myself and forgot precisely which result it was that I was trying to find. Now I understand what you were referring to here in the comments. My apologies for any confusion this caused! | |
| Jan 5, 2020 at 22:57 | history | edited | The Pointer | CC BY-SA 4.0 |
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| Jan 5, 2020 at 17:02 | comment | added | The Pointer | @BruceAbbott Yes, I have asked here physics.stackexchange.com/q/523227/141502 . Thank you for all of your help, Bruce; I greatly appreciate it! | |
| Jan 5, 2020 at 17:01 | comment | added | Bruce Abbott | It maybe half-answers the question, but not the most important part. I couldn't explain how they got the 0.00045 mm, and I looked up the source to check that there wasn't something missing or taken out of context. But my physics knowledge is not deep so I didn't risk putting up a wrong answer. Hopefully the physics guys will be able to clarify... | |
| Jan 5, 2020 at 16:40 | comment | added | The Pointer | @BruceAbbott Hmm, what do you mean? It seems/seemed to me that this mostly answers the question -- although, as you said, apparently this might be the calculation for electron drift for DC, rather than AC. Even so, it's a critical result in answering the question, since we were unable to make sense of this at all with our prior efforts, meaning that the question was probably going to be left unanswered indefinitely. | |
| Jan 5, 2020 at 16:37 | comment | added | Bruce Abbott | Perhaps someone downvoted because you didn't answer the question? (wasn't me!). Unfortunately some people do it without any explanation, even when the reason is not obvious. | |
| Jan 5, 2020 at 16:36 | comment | added | The Pointer | I think the downvote is unreasonable. The result is the same value as that of the textbook authors'. | |
| Jan 5, 2020 at 16:35 | history | edited | The Pointer | CC BY-SA 4.0 |
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| Jan 5, 2020 at 16:20 | comment | added | The Pointer | @BruceAbbott Uhh, is it? Haha, I honestly have no idea; after all, I'm the one who asked the question. But it produces the same value, right? So either we're misunderstanding something, or the author made the incorrect calculation. Given how confusing this has been, I'm going to ask the people on physics.stackexchange for clarification on this. | |
| Jan 5, 2020 at 16:15 | comment | added | Bruce Abbott | That's the drift velocity for DC current, right? How does 'distance between maximum swings in the drift distance' of an AC signal relate to that? | |
| Jan 5, 2020 at 14:38 | history | answered | The Pointer | CC BY-SA 4.0 |