{{Parts infobox |image = |designers = |date = |vitamins = |materials = |transformations = |lifecycles = |parts = |techniques = |tools = |files = |suppliers = [https://www.mouser.com/ Mouser], [https://www.digikey.com/ Digikey] |git = }} [[Category:Parts]] [[Category:Electric parts]] =Introduction= An inductor, also called a coil, choke, or reactor, is a passive two-terminal electrical component that stores energy in a magnetic field when electric current flows through it. An inductor typically consists of an insulated wire wound into a coil. When the current flowing through the coil changes, the time-varying magnetic field induces an electromotive force (e.m.f.) (voltage) in the conductor, described by Faraday's law of induction. According to Lenz's law, the induced voltage has a polarity (direction) which opposes the change in current that created it. As a result, inductors oppose any changes in current through them. =Challenges= * package types * package sizes * capacity and rating =Approaches= =Development targets= =References= * [https://en.wikipedia.org/wiki/Inductor Wikipedia: Inductor]