Field Effect Transistor (FET)

A Field Effect Transistor (FET) is a type of electronic switch or amplifier that controls the flow of current using an electric field. It has three main parts: the source, drain, and gate. When voltage is applied to the gate, it creates an electric field that either allows or blocks electrical current between the source and drain. FETs are valued for their high efficiency, fast switching speed, and minimal power consumption, making them essential in modern electronics like computers and smartphones. They operate primarily as voltage-controlled devices, unlike other transistors that are current-controlled.