Is there a way of calculating how much force can be applied to an object if you are given the magnetic field strength of an electromagnetic?(adsbygoogle = window.adsbygoogle || []).push({});

For example, if an electromagnet produces a B field of 4T, what is the maximum mass of iron it can hold?

And also, how does one calculate the magnetic field outside of a solenoid?

*edit* It seems that I may have another question...*sigh*

If I wrap wires around an iron core like a solenoid to make an electromagnet, would its magnetic strength decrease or increase if I increase the radius of the core? How would I maximize the strength other than having more turns of wires?

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# Can I calculate magnetic force of a magnet?

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