Discussion
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- Question
A portion of the output that provides circuit stabilization is considered to be:
Options- A. negative feedback
- B. distortion
- C. open-loop
- D. positive feedback
- Correct Answer
- negative feedback
- 1. If the input to a comparator is a sine wave, the output is a:
Options- A. ramp voltage
- B. sine wave
- C. rectangular wave
- D. sawtooth wave Discuss
- 2. What is the output waveform of the circuit?
Options- A. sine wave
- B. square wave
- C. sawtooth wave
- D. triangle wave Discuss
- 3. A circuit whose output is proportional to the difference between the input signals is considered to be which type of amplifier?
Options- A. common-mode
- B. darlington
- C. differential
- D. operational Discuss
- 4. The ratio between differential gain and common-mode gain is called:
Options- A. amplitude
- B. differential-mode rejection
- C. common-mode rejection
- D. phase Discuss
- 5. In an open-loop op-amp circuit, whenever the inverting input (?) is negative relative to the noninverting input (+), the output will:
Options- A. swing negative
- B. close the loop
- C. be balanced
- D. swing positive Discuss
- 6. An astable multivibrator is also known as a:
Options- A. one-shot multivibrator
- B. free-running multivibrator
- C. bistable multivibrator
- D. monostable multivibrator Discuss
- 7. The open-loop voltage gain (Aol) of an op-amp is the
Options- A. external voltage gain the device is capable of
- B. internal voltage gain the device is capable of
- C. most controlled parameter
- D. same as Acl Discuss
- 8. In a PLL, to obtain lock, the signal frequency must:
Options- A. come within the lock range
- B. be less than the capture frequency
- C. come within the capture range
- D. be greater than the capture frequency Discuss
- 9. The common-mode voltage gain is
Options- A. smaller than differential voltage gain
- B. equal to voltage gain
- C. greater than differential voltage gain
- D. None of the above Discuss
- 10. If an op-amp has one input grounded and the other input has a signal feed to it, then it is operating as what?
Options- A. Common-mode
- B. Single-ended
- C. Double-ended
- D. Noninverting mode Discuss
Operational Amplifiers problems
Search Results
Correct Answer: rectangular wave
Correct Answer: square wave
Correct Answer: differential
Correct Answer: common-mode rejection
Correct Answer: swing positive
Correct Answer: free-running multivibrator
Correct Answer: internal voltage gain the device is capable of
Correct Answer: come within the capture range
Correct Answer: smaller than differential voltage gain
Correct Answer: Single-ended
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