Biasing is the process of providing DC voltage which helps in the functioning of the circuit. A transistor is based in order to make the emitter base junction forward biased and collector base junction reverse biased, so that it maintains in active region, to work as an amplifier.

Which biasing is mostly used?

Voltage Divider Transistor Biasing

This voltage divider biasing configuration is the most widely used transistor biasing method.

What is the purpose of biasing a transistor?

Why it is necessary ? Transistor Biasing is the process of setting a transistors DC operating voltage or current conditions to the correct level so that any AC input signal can be amplified correctly by the transistor.