Transistor as an amplifier class 12

Although transistors can be used for many other things, amplification is the main application for them. The PN junctions of the transistor must be appropriately biased by external voltages for the transistor to function as an amplifier.

The transistor operates in three distinct modes: Active, Saturation, and Cutoff, depending on the external bias voltage polarities that are applied. An amplifier is only functional in the active mode of the transistor. Transistors can be employed as amplifiers in addition to switches.

A three-layer semiconductor device with amplifier capabilities is called a transistor.

The transistor can regulate a greater signal flow between the collector and emitter by applying a small signal to the base. This makes transistors valuable in electronic circuits as amplifiers for music, radio signals, and more.

Transistor amplifier circuit

The development of modern technology has been significantly influenced by the transistor's capacity to amplify signals. In essence, transistors are amplifiers used for amplification. "Amplification" is the process of increasing a

describe how a transistor is used as an amplifier

transistor is used as an amplifier or switch