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Time varying magnetic field in conductors

  1. Sep 24, 2014 #1
    Something is bugging me a little. According to Maxwell's equations the magnetic and electric fields are decoupled in the static case, so that magnetic fields can exist in metals but not electric fields. For time varying fields, though, both fields are linked so that one cannot exist without inducing the other. That's why EM waves don't penetrate much in metals. So how come there can be strong oscillating magnetic fields in transformer cores? What's happening to the accompanying electric field?
  2. jcsd
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