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Operational Amplifiers
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Question
The major difference between ground and virtual ground is that virtual ground is only a:
Options
A. voltage reference
B. current reference
C. power reference
D. difference reference
Correct Answer
voltage reference
More questions
1. A resistance temperature detector produces a voltage for a given change in temperature.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
2. The sum of all the voltage drops in a series circuit equals the source voltage.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
3. The magnetic field, current through the Hall element, and Hall voltage are all at right angles to each other.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
4. In a series RLC circuit, at above resonance the circuit is more capacitive than it is inductive.
Options
A. True
B. False
Show Answer
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Correct Answer: False
5. What is the product-over-sum result of 150 and 6800?
Options
A. 150
B. 146.7
C. 0.006
D. 6800
Show Answer
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Discuss
Correct Answer: 146.7
6. How many logic states does an S-R flip-flop have?
Options
A. 2
B. 3
C. 4
D. 5
Show Answer
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Discuss
Correct Answer: 4
7. If the primary of a 4:1 turns transformer dissipates 5 W, what is the secondary power?
Options
A. 5.0 W
B. 1.25 pW
C. 9.5 W
D. 20.0 mW
Show Answer
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Discuss
Correct Answer: 5.0 W
8. In a common-mode input to an op-amp, both inputs are connected to the same signal source.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
9. A step-up transformer will have a turns ratio greater than 1.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
10. The number 5200 ×10
?2
equals ___ × 10
1
.
Options
A. 0.52
B. 5.2
C. 52
D. 520
Show Answer
Scratch Pad
Discuss
Correct Answer: 5.2
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