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Home ‣ Electronics ‣ Basic Op-Amp Circuits See What Others Are Saying!
  • Question

  • The critical frequency for the active filter in the given circuit is approximately _______. 20.1 kHz

    The critical frequency for the active filter in the given circuit is approximately _______.


  • Options
  • A. 20.1 kHz
  • B. 89.3 kHz
  • C. 14.2 kHz
  • D. 179 kHz

  • Correct Answer
  • 20.1 kHz 

    • More questions

    • 1. 

      What is the reactive power in the given circuit?


    • Options
    • A. 0 VAR
    • B. 691 µVAR
    • C. 44.23 mVAR
    • D. 1.45 kVAR
      • Discuss
    • 2. If five equal resistors are connected in series with a 20 V source, and a current of 400 µA is measured, each resistor equals ___.

    • Options
    • A. 10 kΩ
    • B. 50 kΩ
    • C. 125 Ω
    • D. 20 Ω
      • Discuss
    • 3. The polarity on the side of the resistor where current enters is ______. The polarity on the side of the resistor where current exits is ___________.

    • Options
    • A. positive, positive
    • B. negative, negative
    • C. negative, positive
    • D. positive, negative
      • Discuss
    • 4. What is the fourth harmonic of a fundamental frequency of 400 Hz?

    • Options
    • A. 100 Hz
    • B. 4 kHz
    • C. 4 Hz
    • D. 1.6 kHz
      • Discuss
    • 5. An instrumentation amplifier has a high

    • Options
    • A. output impedance
    • B. power gain
    • C. CMRR
    • D. supply voltage
      • Discuss
    • 6. As a capacitor is being charged, the voltage across its terminals will:

    • Options
    • A. increase
    • B. decrease
    • C. remain the same
    • D. oppose the source
      • Discuss
    • 7. Schottky TTL logic gates overcome the problem of saturation delay time.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. When troubleshooting a bipolar junction transistor using an ohmmeter, if one of the junctions reads low in both directions, the junction is shorted and the transistor is bad. If one of the junctions reads high in both directions, the junction is shorted and the transistor is good.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. A mathematical operation that determines the rate of change of a curve is called __________.

    • Options
    • A. differentiation
    • B. integration
    • C. curve averaging
    • D. linear regression
      • Discuss
    • 10. What is the phase shift between the voltage across the resistor and the voltage from the source?


    • Options
    • A. VR leads VS by 17°
    • B. VR leads VS by 73°
    • C. VR lags VS by 73°
    • D. VR lags VS by 17°
      • Discuss

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