Question

Mention the applications of a transistor.

Answer 1

1. $Transistorasamplifier$: The transistor, operated in the active region, works as an amplifier. This is because a small change in base current causes a large change in collector
2. $Transistorasswitch$: The transistor can be used as a switch when it operates in the cutoff region (open switch) and saturation region (closed switch).
3. $TransistoramplifierasOscillator$: The transistor amplifier with a positive feedback can work as an oscillator in presence of inductive coupling (or mutual inductance) or through RC or LC network.
4. $IntegratedCircuits$: An integrated circuit (IC) consists of transistors, resistors, diodes, and capacitors combined together in one wafer-thin chip of silicon.