Electronic Devices

This topic discusses the intrinsic and extrinsic semiconductors and their types in brief. It explains the concentration of free electrons and holes in both the semiconductors and the difference between the two semiconductors.

In this topic, energy band theory is explained. The conductive band and valence band are defined here. Further, the difference between energy bands of metals, insulators and semiconductors is highlighted.

This topic explains the formation of the p-n junction, its characteristics, and forward and reverse biasing of junctions. It also discusses the diode as a full-wave and half-wave rectifier, its working, and the various types of junction diodes.

In this topic, we will learn about the junction transistor as a semiconductor device. p-n junction diode under forward bias and reverse bias is also explained here in detail.

The important digital circuits performing special logic operations are called logic gates. In this topic, we will learn the concepts and formulas related to the functioning of digital electronics and logical gates with examples.