How does an inductor works? I know that it stores energy in form of magnectic fields, and all the effects it does to a circuit, but i don't know how it really, physically works. The electrons go through the coils and induce a magnectic field. Why it is stored? Why doesn't the magnectic field just vanish when there is no more current? Why does it works like a current source when there is no more current going into it?