Hiiii! Hi just made this and I'm wondering if the coil it's too far from me magnet or anything else? Basically it's a fan that rotates on tap water(you can see where the magnet is located) and the coil on a stick and that's a 3v LED.

File: 1.14 MB, 4032x3024, IMG_20180923_035024.jpg [View same] [iqdb] [saucenao] [google]

Anonymous Sat Sep 22 21:52:42 2018 No.1469132 [Reply] [Original]

Hiiii! Hi just made this and I'm wondering if the coil it's too far from me magnet or anything else?

Basically it's a fan that rotates on tap water(you can see where the magnet is located) and the coil on a stick and that's a 3v LED.

Anonymous Sun Sep 23 00:12:19 2018 No.1469200

Okay... I'll bite.
Coil IS too far away from the magnet, the number of turns of wire also looks too low.
If you had a lot more turns of wire around your stick then you could make use of the actual magnets that already exist in the ring you taped your magnet to

>>	Anonymous Mon Sep 24 05:00:02 2018 No.1469863 >>1469200 Does the amount of turns is related to TIME/Effort or at BIG Hole = More Magnetic field?

Anonymous Mon Sep 24 05:12:25 2018 No.1469865
File: 128 KB, 800x600, bearings_041.jpg [View same] [iqdb] [saucenao] [google]

>>1469132
Too far.... and wrong orientation. Didn't you pay attention to the windings of the brushless motor when you broke the fan off from it?

Anyways, you have to be over 18 to post on this board.

>>	Anonymous Mon Sep 24 08:26:05 2018 No.1469906 >>1469132 A stick? Really, just a stick out of the fucking yard that you wrapped some goddamn wire around and you expect anything from that. Might work if you shove it straight up your ass.

Anonymous Mon Sep 24 08:50:45 2018 No.1469912
File: 258 KB, 2000x1500, magnet.png [View same] [iqdb] [saucenao] [google]

>>1469863
Yes, the number of turns is directly related to current generated, so is the magnetic field strength.
At the poles of the magnet, pic related, the magnetic field is dense. You want this area to pass through the wire at right angles. The closer the better.

This is a razor with an electromagnet, but similar principles.
>>1469303

Anonymous Mon Sep 24 09:30:10 2018 No.1469929
File: 218 KB, 1080x1198, 61026bc.jpg [View same] [iqdb] [saucenao] [google]

>>1469912
Yep, it's in the equations if OP could be bothered learning some basic physics. Change in flux is proportional to voltage and vice versa, and obviously you get more flux when the components are closer.

As for the number of turns, F=BInL, so more wire means more force.

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