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Electronics
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Operational Amplifiers
Comments
Question
The difference between the upper and lower trigger points is called the Schmitt trigger.
Options
A. True
B. False
Correct Answer
False
Operational Amplifiers problems
Search Results
1. A monostable multivibrator must be triggered.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
2. If an input signal is applied to the inverting input of an op-amp with the noninverting input grounded, the output signal would be opposite in polarity with the input.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
3. If the two inputs to a differential amplifier are exactly the same, then the output is the signal multiplied by two.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
4. The frequency of a crystal is dependent on how much voltage is applied to activate it.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
5. An S-R flip-flop is an example of a bistable multivibrator circuit.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
6. The inverting input is pin 2.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
7. A voltage-follower op-amp has the output connected directly to the inverting input.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
8. This circuit is a bandpass filter.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
9.
The voltage gain of the amplifier in the given circuit would increase if ______.
Options
A. the feedback resistor was decreased in value
B. the input voltage was increased
C. the input resistor was increased in value
D. None of the above
Show Answer
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Discuss
Correct Answer: None of the above
10. The common-mode rejection ratio (CMMR) is the ratio of _____ to ______.
Options
A. the differential voltage gain, the common-mode voltage gain
B. the differential power gain, the common-mode power gain
C. the ideal voltage gain, the actual voltage gain
D. signal voltage, noise voltage
Show Answer
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Discuss
Correct Answer: the differential voltage gain, the common-mode voltage gain
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