Recent content by unityunity

Thanks everyone. I got a tiny bit of pull from the electromagnet now.

It's a metaphor. As in poetry. Thankyou for pointing out the obvious.

Thanks for your reply. I did try with an iron core - no effect. I'm not sure how to up the current when the resistance is fixed (the length of wire) and the voltage is fixed within those ranges.

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...