Below are the answers key for Multiple Choice Questions in Chapter 19: Negative Feedback from the book Electronic Principles 7th Edition by Albert Malvino. Make sure to familiarize each and every questions to increase the chance of passing the ECE Board Exam.
1. b. Opposes the input signal
2. d. Four
3. a. Voltage amplifier
4. a. Zero
5. a. Almost equal
6. c. May equal 1
7. b. Shorted feedback resistor
8. b. Error voltage
9. b. Differential voltage gain of the op amp
10. b. Is usually much greater than 1
11. d. Ideally zero
12. b. Current-to-voltage converter
13. b. Distortion
14. b. 1
15. b. Very small
16. d. Output voltage to input current
17. c. A virtual ground
18. d. Through the load resistor
19. c. Ideally zero
20. b. f2(OL)
21. c. funity/ACL
22. d. ACLf2(CL)
23. d. Power bandwidth
24. b. Open feedback resistor
25. a. Shorted load resistor
26. b. R2 is open
27. d. Shorted load resistor
28. a. Usually larger than the open-loop input impedance
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