semiconductors - What causes saturation in a Bipolar Junction Transistor - Electrical Engineering Stack Exchange
Bipolar Junction Transistor (BJT): What is it & How Does it Work? | Electrical4U
Transistor as a Switch - Configuration, Operating Modes, Uses, Examples
Understanding bipolar junction transistors
Draw the typical input and output characteristics of an n p n transistor in CE configuration. Show how these characteristics can be used to determine a the input resistance r i ,
NPN Transistor Tutorial - The Bipolar NPN Transistor