BJT | Bipolar Junction Transistor ? Working Principal & Applications (2019)
What is Bipolar Junction Transistor, Working as an Amplifier and Switch and their Applications; As we learned "a diode is a simple P-N Junction device and it has two doped region (N-region) and (P-region)" when a second P-N junction is formed and connected in the back to back fashion then the resulting device is formed and known as BJT (Bipolar Junction Transistor).