Making an electromagnet is easy but levitating stuff with it is hard. It was once thought impossible to levitate an object using a magnet. I've seen it been done mostly with meglev trains and pens. The easiest way is to attatch the picture to a pole so it can slide and go from there.How to make an electromagnet out of a straight iron core metal to levitate an object for example a photo frame
I think the following article has the information you just wanted.
http://education.jlab.org/qa/electromagn鈥?/a>How to make an electromagnet out of a straight iron core metal to levitate an object for example a photo frame
wrap copper wire around the core and pass a current through the wire. This should create some sort of magnetic field capable of levitating stuff.
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