Physics

Semiconductor Diode

अर्धचालक डायोड

In Class 12 Physics, this topic introduces the semiconductor diode as a p-n junction device used to control the direction of electric current. Students learn how the depletion region and potential barrier form, how forward and reverse bias affect diode conduction, and how to interpret its current-voltage characteristics. The topic also explains diode applications such as rectification, helping students connect semiconductor materials and device behaviour with simple electronic circuits in Chapter 14.