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Iron vs Copper

Discussion in 'Off-Topic Members Lounge' started by Raven Luni, Aug 15, 2013.

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  1. Raven Luni

    Raven Luni

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    Oct 15, 2011
    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?
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
    Almost the same as with copper wire, but higher loss becaus iron is less conductive than copper.
     
  3. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

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    May 8, 2012
    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
     
  4. Raven Luni

    Raven Luni

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    Oct 15, 2011
    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)
     
  5. Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
    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 :)
     
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