Below are the answers key for Multiple Choice Questions in Chapter 20: Linear Op-Amp Circuits 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. Op amp does not go into saturation
2. b. Minimum
3. a. One supply voltage
4. c. Voltage-to-current converter
5. c. CMRR
6. b. Beta dc
7. b. Noninverting amplifier
8. d. Tolerance of resistors
9. d. A Wheatstone bridge
10. a. First stage
11. b. Leakage current in the shielded cable
12. c. Greater than the feedback resistance
13. d. Summing amplifier
14. c. A stiff current source drives the load
15. b. Bidirectional single-ended load current
16. c. Keep the output voltage almost constant
17. d. 0.0001%
18. d. A nonelectrical quantity to an electrical quantity
19. b. Temperature to resistance
20. a. Making a fine adjustment
21. d. Sixteen outputs
22. b. Can swing all the way to either supply voltage
23. c. Voltage-controlled resistance
24. a. Be negative
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