Timeline for How does having free electrons make something a conductor?
Current License: CC BY-SA 4.0
15 events
| when toggle format | what | by | license | comment | |
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| Sep 22, 2020 at 19:48 | comment | added | Superfast Jellyfish | Maybe of help physics.stackexchange.com/questions/575471/… | |
| Sep 22, 2020 at 19:26 | comment | added | Faheem Azeemi | @Thornah : If the battery does create a potential difference wouldn't that mean the wire would be positively charged? I also read in an article that the battery undergoes a chemical reaction in which it creates electrons that it releases into a wire. On the other terminal the battery creates an attraction between electrons. Here is the link: science.org.au/curious/technology-future/batteries | |
| Sep 22, 2020 at 19:24 | comment | added | The Photon | @FaheemAzeemi, Short answer: it depends on the energy states available in the material. Understanding why the states are what they are is answered (superficially) by a semester solid state physics course. | |
| Sep 22, 2020 at 19:21 | comment | added | Faheem Azeemi | @ThePhoton Why aren't those electrons free? What property of the insulator makes this occur? | |
| Sep 22, 2020 at 18:18 | comment | added | The Photon | @FaheemAzeemi, it depends on the insulator. If you add electrons to intrinsic semiconductor, then it becomes a conductor because those electrons are "free". If you add electrons to teflon it is still an insulator because the added electrons still aren't "free" (i.e. mobile). | |
| Sep 22, 2020 at 18:07 | answer | added | Toba | timeline score: 0 | |
| Sep 22, 2020 at 17:44 | answer | added | Bob D | timeline score: 1 | |
| Sep 22, 2020 at 17:42 | comment | added | Faheem Azeemi | What about adding electrons to an insulator. Wouldn't that make it a conductor because it now has free electrons? | |
| Sep 22, 2020 at 17:19 | comment | added | Faheem Azeemi | Both, questions please | |
| Sep 22, 2020 at 17:18 | comment | added | Criticizing Israel not allowed | You have two separate questions here. Which one do you want to ask? | |
| Sep 22, 2020 at 17:16 | comment | added | Criticizing Israel not allowed | Q: I know that sharks need water to breathe but can't you just add water under a pergola and then the sharks will be able to breathe there? A: a pergola can't hold water, and if you make one that can, it's not a pergola. | |
| Sep 22, 2020 at 17:05 | comment | added | Jon Custer | Well, yes, but adding them may not be particularly easy and they may not last very long. | |
| Sep 22, 2020 at 17:04 | comment | added | Faheem Azeemi | So in other words you can add electrons/charge to an insulator but wouldn't that mean the insulator could conduct electricity. (since there are free electrons) | |
| Sep 22, 2020 at 17:01 | comment | added | Jon Custer | 'Free' electrons are, well, free to move about and carry current. Now, yes, you can add carriers. For example, low-doped semiconductors are photoconductive - shine light to create carriers and you conduct enough. No magnetic field needed, which won't interact with a charge unless it is moving. | |
| Sep 22, 2020 at 16:48 | history | asked | Faheem Azeemi | CC BY-SA 4.0 |