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Question

Mention the applications of a transistor.

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Solution

  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.

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