logo

CuriousTab

CuriousTab

Discussion

Home ‣ Electronics ‣ Operational Amplifiers Comments
  • Question

  • Feedback is used in an open-loop operational amplifier circuit.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 

    • Operational Amplifiers problems

    Search Results

    • 1. Crystal oscillator circuits have a very low Q.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. The ideal output impedance for an operational amplifier is 0 Ω.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. If the two inputs to a differential amplifier are exactly the same, then the output is the signal multiplied by 2.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. 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 to the input.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. An inverting amplifier has a phase shift of 180° from input to output.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. An astable multivibrator has two states.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. The feedback resistor adds to the gain of an op-amp.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. It takes 4 µs for the output voltage of an op-amp to rise from ?14 V to +14 V. The slew rate of this op-amp is 3.5 V/µs.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. In a common-mode input to an op-amp, both inputs are connected to the same signal source.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. An op-amp has very low open-loop gain.

    • Options
    • A. True
    • B. False
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.