The inductance has the same magnetic core and the same number of turns, why is the inductance different? ?

I think the winding density will also affect the inductance value, and the inductance value of winding the coil is related to many factors.

The density of the winding of this inductor, the order of wire arrangement, etc. may affect the inductance and even the temperature can interfere with the inductance.

The loose scattered winding method has relatively obvious inter-turn leakage inductance. The longer the distance between turns, the more serious the leakage inductance.

In the tightly stacked winding method, the leakage inductance is mainly manifested between the layers. The distance between layers is approximately equal to the diameter of the wire. As long as the thickness of the stack is not too large, the leakage inductance effect is relatively small.