Electronics is the science of controlling electrical energy electrically, in which the electrons have a fundamental role. Electronics deals with electrical circuits that involve active electrical components (such as vacuum tubes , transistors , diodes , integrated circuits , optoelectronics , and sensors ), associated passive electrical components, and interconnection technologies. Commonly, electronic devices contain circuitry consisting primarily or exclusively of active semiconductors supplemented with passive elements; such a circuit is described as an electronic circuit . The science of electronics is considered to be a branch of physics and electrical engineering . [1] [2] The nonlinear behaviour of active components and their ability to control electron flows makes amplification of weak signals possible. Electronics is wide...