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Inductance of inductor in large steady state magnetic field

  1. Jul 14, 2012 #1
    So would the inductance of a inductor be effected if it was in a large steady state magnetic field. Say the inductor produces a field of about .01 Tesla and the large electromagnet produces a field of 1 Tesla or more.

    How would a high permeable core vs a air core effect it?

    Would it add to the inductance or would it decrease it or no effect?
  2. jcsd
  3. Jul 14, 2012 #2
    If the inductor has a non-magnetic core (air) the inductance remains the same, irrespective of the presence of the external field.
    On the contrary, a ferromagnetic core may saturate and the inductance would be different.
  4. Jul 14, 2012 #3
    So basically in air, the inductance should stay roughly the same or the same. In a ferromagnetic core , if the external field is large enough, then it may saturate the core, causing the inductor to no longer have the same inductance. Since the core is saturated, I assume that the inductor may start to act more like that of a air core then. That seems like it would make sense.
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