violations of Kerchoffs law

[Plane]

http://www.ecnmag.com/News/2010/05/Redefining-electrical-current-law-with-the-transistor-laser/


Kirchhoff's current law, described by Gustav Kirchhoff in 1845, states charge input at a node is equal to the charge output. In other words, all the electrical energy going in must go out again. On a basic bipolar transistor, with ports for electrical input and output, the law applies straightforwardly. The transistor laser adds a third port for optical output, emitting light.