I read that inductive reactance is generated by the current itself. The current creates a magnetic field which opposes its flow. I've read this in numerous places. its actually the change in amperage that causes the reactance, is what they say. I went to hyperphysics and also read another site and went to the book store and read out of a radio circuit book. All say its created from the change in current. Which indirectly creates a magnetic field, and perhaps the magnetic field resists the flow change, but current is what the text books seem to say.
Go here:
HyperPhysics
and go to electricity and then inductors and it brings you to the physics laws.