Inductor: The second most frequently asked component is the inductor. Inductors are somewhat similar to resistors, except they are designed to store electrical energy in the form of magnetic energy. An inductor can be simplified as a fancy coiled wire around a ferromagnetic material (or other magnetic material). For reasons of physics, design, and construction, inductors, like resistors, don’t care how they are placed. So I think the confusion comes from analytical practice and certain applications where polarity has to be considered when it comes to the direction of current flow. Even if an inductor has no polarity, the specific direction of current flow changes the magnetic poles in and around the inductor.