Below are the answers key for the Multiple Choice Questions (Quiz) in Operational Amplifiers from the book Electronic Devices and Circuit Theory 10th Edition by Robert L. Boylestad.
Answer Key:
1. All of the above
2. single-ended input
3. double-ended (differential) input
4. double-ended output
5. common-mode operation
6. Common-mode
7. Emitters
8. Bipolar and MOSFET
9. bipolar, MOSFET, BiMOS
10. Virtually zero
11. Virtually zero
12. 1
13. –10
14. 11
15. 1
16. 50 mV
17. –1.5 V
18. –1 / RC
19. True
20. inverting amplifier
21. integrator
22. differentiator
23. Both an input offset voltage, VIO and an input offset current, IIO
24. –20 dB / decade or –6 dB / octave
25. All of the above
26. 1
27. 15 Hz
28. 5 V/ms
29. 250
30. 0.00375
31. The sum of the differential gain times the difference input voltage and the common-mode gain times the common input voltage.
32. The differential gain times twice the input signal.
33. The common-mode gain times the input signal.
34. V i1 = –V i2 = 0.50 V
35. Vi1 = –Vi2 = 0.50 V
FILL-IN-THE-BLANKS Questions
1. very high, wide
2. high, low
3. 180º
4. either an input is applied between the two input terminals or two separate signals are applied to the input terminals
5. outputs from both output terminals, which have opposite polarities
6. highly, slightly
7. single-ended
8. double-ended
9. common-mode
10. very large, very small
11. BiFET
12. CMOS
13. CMOS
14. infinite, zero, infinite
15. inverting
16. capacitor
17. V/ms
18. All of the above
19. increases, increases
20. decreases, decreases
21. None of the above
22. the input offset voltage and input offset current
23. closed-loop gain
24. average of the sum
25. Ad / Ac
26. infinite, larger
Complete List of Chapter Quiz in Electronic Devices and Circuit Theory
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