Electromagnets

[ASNES]

Here shortly I am planning on trying to make some powerful electromagnets (strong enough to push steel balls at least 20 MPH) and I was wondering if double winding the copper wire would increase the amount of a magnetic force output by the piece of iron. Does anyone know?

 

[IRstuff]

Have you consulted your EM textbook? What does it say about number of turns and field strength?

TTFN

FAQ731-376

 

[EdStainless]

You can only attract steel with an electromagnet, not push it.
Look at railgun designs. You use pulsed magnetic field.

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