Discussion
Home ‣ Electronics ‣ Bipolar Junction Transistors (BJT) Comments
- Question
When transistors are used in digital circuits they usually operate in the:
Options- A. active region
- B. breakdown region
- C. saturation and cutoff regions
- D. linear region
- Correct Answer
- saturation and cutoff regions
- 1. Which is beta's current ratio?
Options- A. IC/IB
- B. IC/IE
- C. IB/IE
- D. IE/IB Discuss
- 2. In a C-E configuration, an emitter resistor is used for:
Options- A. stabilization
- B. ac signal bypass
- C. collector bias
- D. higher gain Discuss
- 3. In a transistor, collector current is controlled by:
Options- A. collector voltage
- B. base current
- C. collector resistance
- D. all of the above Discuss
- 4. If a 2 mV signal produces a 2 V output, what is the voltage gain?
Options- A. 0.001
- B. 0.004
- C. 100
- D. 1000 Discuss
- 5. Often a common-collector will be the last stage before the load; the main function(s) of this stage is to:
Options- A. provide voltage gain
- B. provide phase inversion
- C. provide a high-frequency path to improve the frequency response
- D. buffer the voltage amplifiers from the low-resistance load and provide impedance matching for maximum power transfer Discuss
- 6. Total emitter current is:
Options- A. IE ? IC
- B. IC + IE
- C. IB + IC
- D. IB ? IC Discuss
- 7. The input/output relationship of the common-collector and common-base amplifiers is:
Options- A. 270 degrees
- B. 180 degrees
- C. 90 degrees
- D. 0 degrees Discuss
- 8. With the positive probe on an NPN base, an ohmmeter reading between the other transistor terminals should be:
Options- A. open
- B. infinite
- C. low resistance
- D. high resistance Discuss
- 9. Three different Q points are shown on a dc load line. The upper Q point represents the:
Options- A. minimum current gain
- B. intermediate current gain
- C. maximum current gain
- D. cutoff point Discuss
- 10. A current ratio of IC/IE is usually less than one and is called:
Options- A. beta
- B. theta
- C. alpha
- D. omega Discuss
Bipolar Junction Transistors (BJT) problems
Search Results
Correct Answer: IC/IB
Correct Answer: stabilization
Correct Answer: base current
Correct Answer: 1000
Correct Answer: buffer the voltage amplifiers from the low-resistance load and provide impedance matching for maximum power transfer
Correct Answer: IB + IC
Correct Answer: 0 degrees
Correct Answer: low resistance
Correct Answer: maximum current gain
Correct Answer: alpha
Comments
More in Electronics:
Programming
Copyright ©CuriousTab. All rights reserved.
good