Iron vs Copper

[Raven Luni]

Random question that popped into my head. If copper is paramagnetic and opposes changes in a nearby magnetic field, what would happen if you made an inductor by coiling iron wire? How would it behave?

 

[Harald Kapp]

Almost the same as with copper wire, but higher loss becaus iron is less conductive than copper.

 

[CDRIVE]

Random question that popped into my head. If copper is paramagnetic and opposes changes in a nearby magnetic field, what would happen if you made an inductor by coiling iron wire? How would it behave?

Are you implying that you can block a magnetic field with a copper barrier or block a changing magnetic field. Either way this topic is would be better placed in Electronics Chat.

Chris

 

[Raven Luni]

I was just curious as to whether the paramagnetic / ferromagnetic properties played a part in the overall behaviour (for example would using iron be similar to having an iron core in a normal coil)

 

[Harald Kapp]

The iron will incur additional losses due to the magnization/demagnetization of the iron. An effect you don't see with copper - unless you wind the coil on an iron core