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Home ‣ Electronics ‣ Operational Amplifiers Comments
  • Question

  • The feedback resistor adds to the gain of an op-amp.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 

    • Operational Amplifiers problems

    Search Results

    • 1. An astable multivibrator has two states.

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    • A. True
    • B. False
      • Discuss
    • 2. Feedback is used in an open-loop operational amplifier circuit.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. Crystal oscillator circuits have a very low Q.

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

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    • A. True
    • B. False
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    • 5. 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
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    • 6. 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.

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

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

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. This circuit is a differentiator.


    • Options
    • A. True
    • B. False
      • Discuss
    • 10. A 555 timer can be configured as an astable multivibrator.

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    • A. True
    • B. False
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