Timeline for DIY electromagnet using copper wire and AC adapter
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 21, 2018 at 12:40 | vote | accept | XuMuK | ||
| Sep 21, 2018 at 12:39 | comment | added | XuMuK | I will try this as best and fastest option. And it takes some time to wait when the wire will arrive. | |
| Sep 21, 2018 at 2:40 | comment | added | wbeaty | @XuMuK more total copper is always best (more grams.) 0.1mm wire is far too thin! A good coil would be 100M long, not 6M, and using thicker wire than 0.1mm. The wire chart says that 0.1mm wire is 0.66ohms per foot, so 6M is correct, 13 ohms, but gives a small weak coil, see amasci.com/tesla/wire1.html#awg. Instead try this: use a new fresh 9V alkaline battery to power your wrench in the photo, but only connect it for very short times (three seconds.) It will provide about ten amps! But the battery will greatly heat, and rapidly drain. So only perform very brief tests. | |
| Sep 20, 2018 at 8:53 | comment | added | XuMuK | So, I am planning to get something like 6 meters of ⌀2cm for coil (~100 turns) and ⌀0.1mm wire. It should be enough. Or it is better to get more turns with smaller diameter (longer coil)? | |
| Sep 20, 2018 at 4:06 | history | edited | Harry Svensson | CC BY-SA 4.0 |
It is important to note that this is true given the P is the same when comparing the two.
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| Sep 20, 2018 at 3:57 | history | edited | wbeaty | CC BY-SA 4.0 |
added 154 characters in body
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| Sep 20, 2018 at 3:34 | history | answered | wbeaty | CC BY-SA 4.0 |