NPN & PNP Transistors explained - electronics engineering

The video tutorial explains the basics of transistors, focusing on PNP and NPN types. It covers the pin configuration, the process of doping silicon to create P and N type materials, and the formation of PN junctions. The tutorial demonstrates how NPN and PNP transistors function in circuits, detailing the flow of current and the role of the emitter, base, and collector pins. It concludes with an explanation of transistor symbols used in electrical drawings.

Describe the configuration of the emitter, base, and collector in a PNP transistor.

What happens to the control circuit LED when the main circuit is removed in a PNP transistor setup?