Q79 / 90 · JEE Main 2022 (27 Jun Shift 2) · Physics

For a transistor to act as a switch, it must be operated in

  • A
    Active region
  • Correct answer
    B
    Saturation and cut-off region
  • C
    Cutoff region only
  • D
    Saturated region only

Solution

Figure

The saturation zone and cut-off area are known as the transistor switch’s working regions. This implies that, by switching between its “top-off” (saturation) and “absolute OFF,” the transistor is used as a switch.

Hence, the correct answer is option: 'B'.

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