Discussion
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- Question
Changing ________ can control the voltage gain of a common-source amplifier.
Options- A. the input voltage
- B. gm
- C. VDD
- D. RS
- Correct Answer
- gm
- 1. A(n) ___ has a conductive channel only when it is biased properly.
Options- A. p-channel JFET
- B. n-channel D-MOSFET
- C. p-channel D-MOSFET
- D. n-channel E-MOSFET Discuss
- 2. VCE approximately equals _______ when a transistor is in saturation.
Options- A. VCC
- B. VB
- C. 0.2 V
- D. 0.7 V Discuss
- 3. The ac input resistance (Rin) of a voltage-divider biased common-emitter amplifier consists of ____________.
Options- A.
- B.
- C.
- D.
Discuss
- 4. The ___ oscillator takes advantage of the piezoelectric effect.
Options- A. crystal
- B. Hartley
- C. Colpitts
- D. RC Discuss
- 5. The collector current in a class A amplifier flows for ________ of the ac input signal.
Options- A. < 180°
- B. 180°
- C. < 360°
- D. 360° Discuss
- 6. Removing a bypass capacitor from a common-emitter amplifier circuit will _________ voltage gain and ________ input resistance.
Options- A. increase, decrease
- B. decrease, increase
- C. decrease, decrease
- D. increase, increase Discuss
- 7. A _______________ JFET amplifier provides a voltage gain of less than one.
Options- A. common-source
- B. common-channel
- C. common-drain
- D. None of the above Discuss
- 8. The gain of a BJT is called _______ and the gain of a JFET is called _______.
Options- A. beta, alpha
- B. transconductance, beta
- C. beta, transconductance
- D. transconductance, transconductance Discuss
- 9. The gate-source junction of a JFET must be ________ for proper linear operation.
Options- A. forward-biased
- B. reverse-biased
- C. either forward-biased or reverse-biased
- D. neutral Discuss
- 10. In order to sustain oscillations in a feedback oscillator, the gain should be _________ so the product of Av × B equals_______.
Options- A. reduced, one
- B. reduced, less than one
- C. increased, more than one
- D. increased, much greater than one Discuss
Transistors and Applications problems
Search Results
Correct Answer: n-channel E-MOSFET
Correct Answer: 0.2 V
Correct Answer:
Correct Answer: crystal
Correct Answer: 360°
Correct Answer: decrease, increase
Correct Answer: common-drain
Correct Answer: beta, transconductance
Correct Answer: reverse-biased
Correct Answer: reduced, one
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