Physics

p-n Junction

पी-एन जंक्शन

In this Class 12 Physics topic from Chapter 14, Semiconductor Electronics: Materials, Devices and Simple Circuits, students learn how joining p-type and n-type semiconductor materials forms a p-n junction. The topic explains diffusion of charge carriers, the depletion region, barrier potential, and how the junction behaves under forward and reverse bias. It also builds the foundation for understanding semiconductor diodes, rectification, and their role in simple electronic circuits.