Is anybody out there in MEG Land?

My latest deep thoughts:

The MEG can be considered a parallel LCR circuit. When an LCR circuit
is in resonance the voltage is maximum and the current is minimized.
So I conclude that the permeability of the core will be extremely
high at resonance. Since current is minimized - H (magnetizing force)
will be minimized, and since Voltage is maximized - B (Flux density)
will be maximized.

Thus B/H = mu = huge permeability

I couldn't understand why the MEG was using such high frequencies -
my reasoning was - if you take a look at the data sheet for any core,
the permeability drops as frequency goes up, and this would in turn
switch only a small bit of flux in he MEG.

But since the MEG is at resonance (and high permeability) then it's
switching much more flux than I had previously thought.

Anybody Agree?

Ken