Main Page | See live article | Alphabetical index Norton's theorem for electrical networks states that any collection of voltage sources and resistors with two terminals is electrically equivalent to an ideal current source I in parallel with a single resistor R. The theorem was published in 1926 by Bell Labs engineer Edward Lawry Norton (1898-1983). See also: Thevenin's theorem. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.