Calculating the number of turns and thickness of an electromagnet

I want to calculate the number of turns of an electromagnet and the thickness of the wire.

But i have tried to search arround in books, and can't really find any thing.

I know my wire is 0,114mm and dimensions for electromagnet is

• Hight: 7mm
• width: 12mm
• lenght: 57mm

The form is like a horseshoe, but with 90* edge. Picture is linked:

http://oi47.tinypic.com/15zqlv8.jpg

My material of the core is steel (ignore the fact about type of steel)

I have 0,7 ampere for use.

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 I do not understand what exactly is the problem. – Pygmalion Apr 25 '12 at 15:48 i want to calculate the number of turns for my electromagnet.. so the problem is that i dont know how to do that. – user1098185 Apr 25 '12 at 15:55 It would be helpful if you know what magnetic field you need. But then you would have to specify magnetic properties of your steel and even then I don't think you'll find an expert on that on this forum. I suggest you try somewhere else. Cheers! – Pygmalion Apr 25 '12 at 16:11 You say you "want to calculate the thickness of the wire", and then you give it (0.114mm). If it was just about the number of turns I would say divide the height by the thickness, but from the shape of your magnet you would have to know where the solenoid ends on the horseshoe...precise known parameters and exactly what you have to calculate, otherwise we cannot help! – MrBrody May 24 '12 at 0:30