DC vs AC results

[Michael Craft <mjcraft78@xxxxxxxxx>]

Question:

If I apply a very slow AC current (~0.1 Hz) to my
model (as opposed to a DC excitation) I will get a
higher flux density (and field intensity) than the
results for just DC. Shouldn't these be very similar?
The descrepency is on the order of 26% increase. I
am trying to evaluate the effect of eddy currents vs
frequency, but I need to know the cause of this large
difference.

Thanks,
Michael Craft

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