ELECTRODES: Variety

ELECTRODES: Variety.

•  A variety of single and paired Electrodes for use in the science laboratory.

(Wikipedia excerpt: ..."...An electrode [E] is an electrical conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte, a vacuum or a gas). In electrochemical cells, [E] are essential parts that can consist of a variety of materials (chemicals) depending on the type of cell. An [E] may be called either a cathode or anode according to the direction of the electric current, unrelated to the potential difference between [E].

Michael Faraday coined the term " [E] " in 1833; the word recalls the Greek ἤλεκτρον (ḗlektron, "amber") and ὁδός (hodós, "path, way"). The electrophore, invented by Johan Wilcke in 1762, was an early version of an electrode used to study static electricity.[1]  [E] are an essential part of any battery. The first electrochemical battery was devised by Alessandro Volta and was aptly named the Voltaic cell.[2] This battery consisted of a stack of copper and zinc [E] separated by brine-soaked paper disks. Due to fluctuation in the voltage provided by the voltaic cell, it was not very practical...")

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