Question

what is bipolar junction transistors..

Answer 1

Bipolar Junction Transistor (BJT) is a Semiconductor device constructed with three doped Semiconductor Regions (Base, Collector and Emitter) separated by two p-n Junctions, Figure 1. The p-n Junction between the Base and the Emitter has a Barrier Voltage (V0) of about 0.6 V, which is an important parameter of a BJT.

Answer 2

⇒ Bipolarity can be defined as a system of world order in which the majority of global economic, military and cultural influence is held between two states. The classic case of a bipolar world is that of the Cold War between the United States and the Soviet Union, which dominated the second half of the twentieth century.