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  • Question

  • The input voltage must be ______ in the given circuit to obtain the given output voltage. 343 mV 400

    The input voltage must be ______ in the given circuit to obtain the given output voltage.


  • Options
  • A. 343 mV
  • B. 400 mV
  • C. 480 mV
  • D. 600 mV

  • Correct Answer
  • 400 mV 

    • Operational Amplifiers problems

    Search Results

    • 1. 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
      • Discuss
    • 2. 

      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
      • Discuss
    • 3. This circuit is a bandpass filter.


    • Options
    • A. True
    • B. False
      • Discuss
    • 4. A voltage-follower op-amp has the output connected directly to the inverting input.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. The inverting input is pin 2.


    • Options
    • A. True
    • B. False
      • Discuss
    • 6. The Q of a crystal _________.

    • Options
    • A. is extremely low
    • B. is about 40 or so in most cases
    • C. is extremely high
    • D. none of the above
      • Discuss
    • 7. ______ is NOT a characteristic of an ideal op-amp.

    • Options
    • A. Infinite voltage gain
    • B. Minimum bandwidth
    • C. Infinite input impedance
    • D. Zero output impedance
      • Discuss
    • 8. Common-mode signals have _____.

    • Options
    • A. the same amplitude
    • B. the same phase
    • C. the same frequency
    • D. All of the above
      • Discuss
    • 9. Current cannot flow to ground through a(n) ________.

    • Options
    • A. mechanical ground
    • B. ac ground
    • C. virtual ground
    • D. virtual short
      • Discuss
    • 10. The voltage required to force the differential output to zero is called _______.

    • Options
    • A. input-offset current
    • B. input-offset voltage
    • C. input bias current
    • D. slew rate voltage
      • Discuss

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