Malvino: MCQ in Voltage Amplifiers

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(Last Updated On: February 7, 2020)
MCQs in Voltage Amplifiers

This is the Multiple Choice Questions in Chapter 10: Voltage Amplifiers from the book Electronic Principles 7th Edition by Albert Malvino. If you are looking for a reviewer in Electronics Engineering this will definitely help. I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. Make sure to familiarize each and every questions to increase the chance of passing the ECE Board Exam.

Topic Outline

  • MCQs in Base-Biased Amplifier
  • MCQs in Emitter-Biased Amplifier
  • MCQs in Small Signal Operation
  • MCQs in AC Beta
  • MCQs in AC Resistance of the Emitter Diode
  • MCQs in Two Transistors Models
  • MCQs in Analyzing an Amplifier
  • MCQs in AC Quantities on the Data Sheet

Start Practice Exam Test Questions

Choose the letter of the best answer in each questions.

1. The emitter is at ac ground in a

  • a. CB stage
  • b. CC stage
  • c. CE stage
  • d. None of these

2. The output voltage of a CE stage is usually

  • a. Constant
  • b. Dependent on re’
  • c. Small
  • d. Less the one

3. The voltage gain equals the output voltage divided by the

  • a. Input voltage
  • b. AC emitter resistance
  • c. AC collector resistance
  • d. Generator voltage

4. The input impedance of the base increases when

  • a. Beta increases
  • b. Supply voltage increases
  • c. Beta decreases
  • d. AC collector resistance increases

5. Voltage gain is directly proportional to

  • a. Beta
  • b. Ac emitter resistance
  • c. DC collector voltage
  • d. AC collector resistance

6. Compared to the ac resistance of the emitter diode, the feedback resistance of a swamped amplifier should be

  • a. Small
  • b. Equal
  • c. Large
  • d. Zero

7. Compared to a CE stage, a swamped amplifier has an input impedance that is

  • a. Smaller
  • b. Equal
  • c. Larger
  • d. Zero

8. To reduce the distortion of an amplified signal, you can increase the

  • a. Collector resistance
  • b. Emitter feedback resistance
  • c. Generator resistance
  • d. Load resistance

9. The emitter of a swamped amplifier

  • a. Is grounded
  • b. Has no de voltage
  • c. Has an ac voltage
  • d. Has no ac voltage

10. A swamped amplifier uses

  • a. Base bias
  • b. Positive feedback
  • c. Negative feedback
  • d. A grounded emitter

11. In a swamped amplifier, the effects of the emitter diode become

  • a. Important to voltage gain
  • b. Critical to input impedance
  • c. Significant to the analysis
  • d. Unimportant

12. The feedback resistor

  • a. Increases voltage gain
  • b. Reduces distortion
  • c. Decreases collector resistance
  • d. Decreases input impedance

13. The feedback resistor

  • a. Stabilizes voltage gain
  • b. Increases distortion
  • c. Increases collector resistance
  • d. Decreases input impedance

14. The ac collector resistance of the first stage includes the

  • a. Load resistance
  • b. Input impedance of first stage
  • c. Emitter resistance of first stage
  • d. Input impedance of second stage

15. If the emitter bypass capacitor opens, the ac output voltage will

  • a. Decrease
  • b. Increase
  • c. Remain the same
  • d. Equal zero

16. If the collector resistor is shorted, the ac output voltage will

  • a. Decrease
  • b. Increase
  • c. Remain the same
  • d. Equal zero

17. If the load resistance is open, the ac output voltage will

  • a. Decrease
  • b. Increase
  • c. Remain the same
  • d. Equal zero

18. If any capacitor is open, the ac output voltage will

  • a. Decrease
  • b. Increase
  • c. Remain the same
  • d. Equal zero

19. If the input coupling capacitor is open, the ac input voltage will

  • a. Decrease
  • b. Increase
  • c. Remain the same
  • d. Equal zero

20. If the bypass capacitor is open, the ac input voltage will

  • a. Decrease
  • b. Increase
  • c. Remain the same
  • d. Equal zero

21. If the output coupling capacitor is open, the ac input voltage will

  • a. Decrease
  • b. Increase
  • c. Remain the same
  • d. Equal zero

22. If the emitter resistor is open, the ac input voltage will

  • a. Decrease
  • b. Increase
  • c. Remain the same
  • d. Equal zero

23. If the collector resistor is open, the ac input voltage will

  • a. Decrease
  • b. Increase
  • c. Remain the same
  • d. Equal approximately zero

24. If the emitter bypass capacitor is shorted, the ac input voltage will

  • a. Decrease
  • b. Increase
  • c. Remain the same
  • d. Equal zero

Check your work.

Complete List of MCQ in Electronic Principles by Albert Malvino

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