transistor

A bipolar junction transistor (BJT) is a three-terminal semiconductor device used for amplifying and switching electronic signals. output current, voltage, and/or power are controlled by its input current. A BJT consists of two p–n junctions combined together and uses both electrons and holes as charge carriers, which is where its “bipolar” name comes from.  The … Read more

FET is voltage controlled device.

A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. It is one of the most important building blocks of modern electronic circuits. A transistor controls the flow of current — it can allow or block current depending on the input signal applied to it. In simple words, it … Read more