Any strong magnet can magnetize other things, depending on the material. Iron can be relatively easily be magnetized, while neodymium magnets require a huge (but obtainable) field.
That looks like a big electromagnet, from a motor, it will probably work, but you have to feed it DC, not AC. (Or else the object will be demagnetized when removed)
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Circuit is for controlling the fan on a Raspberry Pi, just on/off according to temp, no PWM. Not sure about the diode as it has a .7V drop and it’s a tiny brushless DC motor. No markings on the fan so I measured the current with a multimeter when hooking it up to a USB charger. Circuit was adapted from here using what I have...
wave em like you just don't care (mander.xyz)
six (feddit.de)
Super easy, barely an inconvenience (diyrpg.org)
When I was a kid my Dad made a magnet charger with some electrified copper coils would this be something that could be used to achieve similar results somehow? TIA (i.imgur.com)
18+ Any +18 communities around here?
pr0n, dirty posts and the like?
Small fan switch sanity check. (lemmy.world)
Circuit is for controlling the fan on a Raspberry Pi, just on/off according to temp, no PWM. Not sure about the diode as it has a .7V drop and it’s a tiny brushless DC motor. No markings on the fan so I measured the current with a multimeter when hooking it up to a USB charger. Circuit was adapted from here using what I have...
microsoft-ies 🍵 (lemmy.world)
Not Electronics related: Banner and logo of this community?
Is there a reason why the banner and logo of this community are just the reddit logo?...
Reddit: open /r/pics or else. Mods: OK but you didn't say how (old.reddit.com)
I honestly don't know if this is allowed here but I thought this is malicious compliance at its finest....