Electronic Devices-Transistor Bias Circuits

Electronic Devices-Transistor Bias Circuits
1. Clipping is the result of
  • the input signal being too large.
  • the transistor being driven into saturation.
  • the transistor being driven into cutoff.
  • all of the above
Show Answer
2. Which transistor bias circuit arrangement provides good stability using negative feedback from collector to base?
  • base bias
  • collector-feedback bias
  • voltage-divider bias
  • emitter bias
Show Answer
3. Which transistor bias circuit provides good Q-point stability with a single-polarity supply voltage?
  • base bias
  • collector-feedback bias
  • voltage-divider bias
  • emitter bias
Show Answer
4. Ideally, for linear operation, a transistor should be biased so that the Q-point is
  • near saturation.
  • near cutoff.
  • where IC is maximum.
  • halfway between cutoff and saturation.
Show Answer
5. The most stable biasing technique used is the
  • voltage-divider bias.
  • base bias.
  • emitter bias.
  • collector bias.
Show Answer
6. Emitter bias requires
  • only a positive supply voltage.
  • only a negative supply voltage.
  • no supply voltage.
  • both positive and negative supply voltages.
Show Answer
7. What is the most common bias circuit?
  • base
  • collector
  • emitter
  • voltage-divider
Show Answer
8. At saturation the value of VCE is nearly ________, and IC = ________.
  • zero, zero
  • VCC, IC(sat)
  • zero, I(sat)
  • VCC, zero
Show Answer
9. Voltage-divider bias has a relatively stable Q-point, as does
  • base bias.
  • collector-feedback bias.
  • both of the above
  • none of the above
Show Answer
10. The linear (active) operating region of a transistor lies along the load line below ________ and above ________.
  • cutoff, saturation
  • saturation, cutoff
Show Answer
Questions and Answers for Competitive Exams Various Entrance Test