Editing Inductor (section)

===Choke===
[[File:Two inductors (437342545).jpg|thumbnail|An MF or HF radio choke for tenths of an ampere, and a ferrite bead VHF choke for several amperes.]]
A [[choke (electronics)|choke]] is an inductor designed specifically for blocking high-frequency alternating current (AC) in an electrical circuit, while allowing DC or low-frequency signals to pass. Because the inductor restricts or "chokes" the changes in current, this type of inductor is called a choke. It usually consists of a coil of insulated wire wound on a magnetic core, although some consist of a donut-shaped "bead" of ferrite material strung on a wire. Like other inductors, chokes resist changes in current passing through them increasingly with frequency. The difference between chokes and other inductors is that chokes do not require the high [[Q factor]] construction techniques that are used to reduce the resistance in inductors used in tuned circuits.