(Encyclopedia)
CE5
Electrolysis: In a typical reaction electrodes are placed in a solution of hydrogen chloride, HCl, which contains both hydrogen and chlorine ions. The battery removes electrons…
(Encyclopedia) electrolysis, cosmetic, method of permanently removing superfluous or unwanted hair. A fine needle is inserted into the hair follicle; the application of an electric current through…
(Encyclopedia) electrolyteelectrolyteĭlĕkˈtrəlītˌ [key], electrical conductor in which current is carried by ions rather than by free electrons (as in a metal). Electrolytes include water solutions…
(Encyclopedia) Alsop, JosephAlsop, Josephôlˈsəp [key], 1910–89, and Alsop, Stewart, 1914–74, American political journalists, b. Avon, Conn. Joseph joined (1932) the New York Herald Tribune as a staff…
(Encyclopedia)
CE5
Electromagnet
electromagnet, device in which magnetism is produced by an electric current. Any electric current produces a magnetic field, but the field near an ordinary…
(Encyclopedia)
CE5
Electromagnetic spectrum
electromagnetic radiation, energy radiated in the form of a wave as a result of the motion of electric charges. A moving charge gives rise to a…
(Encyclopedia) electromotive force, abbr. emf, difference in electric potential, or voltage, between the terminals of a source of electricity, e.g., a battery from which no current is being drawn.…
(Encyclopedia) electromotive series, list of metals whose order indicates the relative tendency to be oxidized, or to give up electrons (see oxidation and reduction); the list also includes the gas…
(Encyclopedia) electron, elementary particle carrying a unit charge of negative electricity. Ordinary electric current is the flow of electrons through a wire conductor (see electricity). The…
