How Do We Distinguish Poles in Liquid State Magnets?

AI Thread Summary
Distinguishing poles in liquid state magnets is complex, as traditional concepts of magnetism apply differently to flowing materials. Liquid magnets, such as ferrofluids, respond to magnetic fields but do not exhibit ferromagnetism like solid iron. Heating iron causes it to lose magnetism before melting, complicating the understanding of magnetic properties in liquid states. In magnetic resonance imaging (MRI), the dipole orientation of substances like aqueous hydrogen can be detected, but this does not equate to traditional magnetic poles. Overall, discussions on magnetism should clarify whether they refer to ferromagnetism or other magnetic behaviors to avoid confusion.
monty37
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how do we distinguish poles in case of a liquid state magnet ..or do they tend
to lose their magnetic property?
 
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Magnetism is a property not of iron atoms, but of bulk iron. When you heat iron, it loses its magnetism long before it melts.
 
There are some materials: ferrofluids for example, that respond to magnetic fields. As an extreme example, MRI is used to detect the dipole orientation of (aqueous) hydrogen. I'm not sure if you are thinking of either.

There's not much sense to speak of 'poles' in those cases, since the material can flow.
 
Ferrofluids do not display ferromagnetism, nor does water in NMR. While "magnetism" is a huge field with many different behaviors, I think it's safest to assume posters are talking about ferromagnetism unless they specify otherwise.
 
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