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Which one of the following is a region of operation of PNP Bipolar Junction Transistors?
  • a)
    Cutoff region
  • b)
    Forward-active region
  • c)
    Reverse-active region
  • d)
    All of the above
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Which one of the following is a region of operation of PNP Bipolar Jun...
A PNP Bipolar Junction Transistor has an N-doped semiconductor base in between a P-doped emitter and P-doped collector region. Bipolar transistors have four distinct regions of operation. These regions are defined by the biases placed on Bipolar Junction Transistor. The regions are:
  • Cutoff region: The Cutoff region is when the transistor is inactive due to minimal current being passed through the transistor, which makes the transistor appear as an open circuit. 
  • Forward-active region:  The Forward-active region occurs when the transistor is in its active state which allows the transistor to amplify the voltage variations present on the base.
  • Reverse-active region: The Reverse-active region occurs when the transistor is in its active state but the maximum current gain in the reverse active mode is much smaller than the forward active mode. 
  • Saturation region: The saturation region allows the transistor to conduct current from the emitter to the collector.
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Which one of the following is a region of operation of PNP Bipolar Junction Transistors?a)Cutoff regionb)Forward-active regionc)Reverse-active regiond)All of the aboveCorrect answer is option 'D'. Can you explain this answer?
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