inductance question

Hi

Is it in the red circle in the picture, because here it increases?

Hi
You can see the red circle , it is decrease.
After the red circle , the inductance is increase .
My question is why is it decrease in lower frequencies(red circle)?

THX in advance.

hi

actually u should know that for inductance AC is the current for best performance.
inductance can pass low frequencies so it will not work bcz low freq is same as DC
so inductane behaviour is abnormal at low freq

hi,
its surprising. can you please refine the mesh and check again?
thanx
cv

Hi,
i saw this phenomena many times before, it is not a mistake.
my guess was that the inductance is decreasing as a result of the skin effect.
and after it increases because of the parallel capacitance of the net inductor model.

Yes, montera is rigt about the decrease it's really skin effect, there is additional mechanism edge effect (in case the wire cross-section is not circular).

The increase is due to resonance in which the whole impedance
of inductor branch become very large compared to other frequencies.

Regards.