@ moderator :
this thread can be closed. I examined my problem and I have found that it isn't feasible.
But anyway : thanks to everyone that has replied!
thx for your replies!
I know the dimension aren't related linear with the strengt, but I need really both : big magnetic contact area and a big attraction field.
I need 2 N/mm^2 (145 pounds force / sq.inch ) at a few mm (+/- 0.1inches) of the magnetic area.
If I will make this magnetic...
thx for your reply.
The fact that I was asking this question on this forum is because I can't affort to use the trial and error method as I will build a large electromagnet.
The dimensions should go up to a cross-section of 40*40 cm^2 (15.75 *15.75 inches^2) or even up to 100*100 cm^2...
Hi,
I like to research the possibility to build an electromagnet that is quit big and has a lot of strength. As I really don't know much about magnetism, I don't see how to start with this.
Anyone that please can help me with some formulas?
I like to make a sort of excel or MATLAB...