Semiconductors | Class 12 Physics

This Master Class is about Semiconductors.

It will explain p and n type. Material used for making semiconductors silicon and germanium semiconductors.Difference between holes and electons and current transfer through holes and electons. Biasing of semiconductors.

Extrinsic and intrinsic semiconductors.

The pn junction  and it's working.barrier potential and width of the junction 

Forward and reverse biasing of a pn junction diode . Graphical explanation of forward and reverse biasing.knee voltage and zener voltages.

Pn junction diode  as a rectifier. Half wave and full wave rectifier. Filter circuit to remove ac ripels left in output of the recifier.

Uses of diodes

Types of diodes. 

Zener diode its uses and applications

LED its uses and applications

Solar its uses and applications

Transistor and it's construction.

Types of transistors PNP and NpN types 

Comman charecterstics of a transistor. Biasing of two junctions of the transistor in forward and reverse modes and advantages.

Transistor as comman emitter amplifier

Gain's in transistor

Current gain, voltage gain power gain.