- #1
unityunity
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Hi everybody,
I just had 100m of copper winding wire arrive in the mail so I can build an electromagnet.
I'm aiming to pull a 5kg weight along, which is already floating on a separate magnetic field so all friction is removed except air resistance.
What I want to do is put an electomagnet in front of this 5kg box, to pull it along on a cushion of air - similar to the Japanese maglev trains.
(except mine is awesome).
So here's the thing.
I'm trying to make the smallest electromagnet I can out of this wire.
I wound it all around a little a plastic air core with a diameter of 6mm. There's 100 turns of wire, wire is 0.2mm, copper, 36SWG.
Hooked up a 9V battery.
Nothing - no force.
I know... you are going to say the number of turns is too low.
But before I spend the next 2 hours going mad winding up this tiny little thing with 100,000 turns, I wonder if someone could help me with a few specs for the design.
Best guess at what size radius core to use (air core), how many turns, and voltage to apply.
I'm stuck with standard battery voltages - multiples of 1.5v, or 9V.
Thanks for your help!
I just had 100m of copper winding wire arrive in the mail so I can build an electromagnet.
I'm aiming to pull a 5kg weight along, which is already floating on a separate magnetic field so all friction is removed except air resistance.
What I want to do is put an electomagnet in front of this 5kg box, to pull it along on a cushion of air - similar to the Japanese maglev trains.
(except mine is awesome).
So here's the thing.
I'm trying to make the smallest electromagnet I can out of this wire.
I wound it all around a little a plastic air core with a diameter of 6mm. There's 100 turns of wire, wire is 0.2mm, copper, 36SWG.
Hooked up a 9V battery.
Nothing - no force.
I know... you are going to say the number of turns is too low.
But before I spend the next 2 hours going mad winding up this tiny little thing with 100,000 turns, I wonder if someone could help me with a few specs for the design.
Best guess at what size radius core to use (air core), how many turns, and voltage to apply.
I'm stuck with standard battery voltages - multiples of 1.5v, or 9V.
Thanks for your help!