Main Page | See live article | Alphabetical index Spark gap A spark gap consists of an arragement of two conducting elements that control the movement of electrons or ions. It is composed of a set of conductorss in which a disruptive and violent discharge of electromagnetic energy (known as a current) passes from one node to the other node. The dielectric medium that reduces the transmission of electricity between the two nodes reestablishes itself after the transition of the discharged current. A spark plug uses a spark gap to initiate combustion. See also Ark of the Covenant List of electronics topics Radar Spark plug Tesla coil This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.