Discussion
Home ‣ Electronics ‣ Bipolar Junction Transistors (BJT) Comments
- Question
If a transistor operates at the middle of the dc load line, a decrease in the current gain will move the Q point:
Options- A. off the load line
- B. nowhere
- C. up
- D. down
- Correct Answer
- down
- 1. A transistor may be used as a switching device or as a:
Options- A. fixed resistor
- B. tuning device
- C. rectifier
- D. variable resistor Discuss
- 2. The C-B configuration is used to provide which type of gain?
Options- A. voltage
- B. current
- C. resistance
- D. power Discuss
- 3. The symbol hfe is the same as:
Options- A.
- B.
- C. hi-fi
- D.
Discuss
- 4. Most of the electrons in the base of an NPN transistor flow:
Options- A. out of the base lead
- B. into the collector
- C. into the emitter
- D. into the base supply Discuss
- 5. A current ratio of IC/IE is usually less than one and is called:
Options- A. beta
- B. theta
- C. alpha
- D. omega Discuss
- 6. If VCC = +18 V, voltage-divider resistor R1 is 4.7 kΩ, and R2 is 1500Ω, what is the base bias voltage?
Options- A. 8.70 V
- B. 4.35 V
- C. 2.90 V
- D. 0.7 V Discuss
- 7. What is the collector current for a C-E configuration with a beta of 100 and a base current of 30 µA?
Options- A. 30 µA
- B. .3 µA
- C. 3 mA
- D. 3 MA Discuss
- 8. With low-power transistor packages, the base terminal is usually the:
Options- A. tab end
- B. middle
- C. right end
- D. stud mount Discuss
- 9. The Q point on a load line may be used to determine:
Options- A. VC
- B. VCC
- C. VB
- D. IC Discuss
- 10. For a C-C configuration to operate properly, the collector-base junction should be reverse biased, while forward bias should be applied to which junction?
Options- A. collector-emitter
- B. base-emitter
- C. collector-base
- D. cathode-anode Discuss
Bipolar Junction Transistors (BJT) problems
Search Results
Correct Answer: variable resistor
Correct Answer: voltage
Correct Answer:
Correct Answer: into the collector
Correct Answer: alpha
Correct Answer: 4.35 V
Correct Answer: 3 mA
Correct Answer: middle
Correct Answer: VB
Correct Answer: collector-emitter
Comments
There are no comments.More in Electronics:
Programming
Copyright ©CuriousTab. All rights reserved.