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  • Question
  • When a capacitor is used in place of a resistor in an op-amp network, its placement determines:


  • Options
  • A. open- or closed-loop gain
  • B. integration or differentiation
  • C. saturation or cutoff
  • D. addition or subtraction

  • Correct Answer
  • integration or differentiation 


  • Operational Amplifiers problems


    Search Results


    • 1. If the gain of a closed-loop inverting amplifier is 3.9, with an input resistor value of 1.6 kilohms, what value of feedback resistor is necessary?

    • Options
    • A. 6240 ohms
    • B. 2.4 kilohms
    • C. 410 ohms
    • D. 0.62 kilohms
    • Discuss
    • 2. What is the frequency of this 555 astable multivibrator?


    • Options
    • A. 278 Hz
    • B. 178 Hz
    • C. 78 Hz
    • D. 8 Hz
    • Discuss
    • 3. What is this circuit?


    • Options
    • A. a low-pass filter
    • B. a high-pass filter
    • C. a bandpass filter
    • D. a band-stop filter
    • Discuss
    • 4. With negative feedback, the returning signal

    • Options
    • A. is proportional to the output current
    • B. is proportional to the differential voltage gain
    • C. opposes the input signal
    • D. aids the input signal
    • Discuss
    • 5. The input offset current equals the

    • Options
    • A. average of two base currents
    • B. collector current divided by the current gain
    • C. difference between two base-emitter voltages
    • D. difference between two base currents
    • Discuss
    • 6. An output that is proportional to the addition of two or more inputs is from which type of amplifier?

    • Options
    • A. differentiator
    • B. difference
    • C. summing
    • D. analog subtractor
    • Discuss
    • 7. The magnitude of closed-loop voltage gain (Acl) of an inverting amplifier equals:

    • Options
    • A. the ratio of the input resistance to the feedback resistance
    • B. the open-loop voltage gain Aol
    • C. the feedback resistance divided by the input resistance
    • D. the input resistance
    • Discuss
    • 8. What is the output waveform?


    • Options
    • A. sine wave
    • B. square wave
    • C. +15 V
    • D. ?15 V
    • Discuss
    • 9. What starts a free-running multivibrator?

    • Options
    • A. a trigger
    • B. an input signal
    • C. an external circuit
    • D. nothing
    • Discuss
    • 10. The closed-loop voltage gain of an inverting amplifier equals:

    • Options
    • A. the ratio of the input resistance to the feedback resistance
    • B. the open-loop voltage gain
    • C. the feedback resistance divided by the input resistance
    • D. the input resistance
    • Discuss


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