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Home ‣ Electrical Engineering ‣ Circuit Theorems in AC Analysis See What Others Are Saying!
  • Question

  • Referring to the given circuit, how much power, in watts, is delivered to the speaker at the determined frequency if VS = 4.5 VRMS?

    Referring to the given circuit, how much power, in watts, is delivered to the speaker at the determi


  • Options
  • A. 226 mW
  • B. 2.26 mW
  • C. 4.24 mW
  • D. 424 mW

  • Correct Answer
  • 424 mW 

    • More questions

    • 1. Find the node voltage VA.


    • Options
    • A. 518 mV
    • B. 5.18 V
    • C. 9.56 V
    • D. 956 mV
      • Discuss
    • 2. The bandwidth of a resonant filter is determined by the quality factor (Q) of the circuit and the resonant frequency.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. In a series RC circuit, when the frequency and the resistance are halved, the impedance

    • Options
    • A. doubles
    • B. is halved
    • C. is reduced to one-fourth
    • D. cannot be determined without values
      • Discuss
    • 4. XC is inversely proportional to frequency and capacitance.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. A string of five series resistors is connected across a 6 V battery. Zero voltage is measured across all resistors except R3. The voltage across R3 is

    • Options
    • A. 0 V
    • B. 1.2 V
    • C. 6 V
    • D. 0.6 V
      • Discuss
    • 6. A sawtooth wave has a period of 10 ms. Its frequency is

    • Options
    • A. 10 Hz
    • B. 50 Hz
    • C. 100 Hz
    • D. 1,000 Hz
      • Discuss
    • 7. A 5 mH, a 4.3 mH, and a 0.6 mH inductor are connected in parallel. The total inductance is

    • Options
    • A. 9.9 mH
    • B. greater than 5 mH
    • C. 9.9 mH or greater than 5 mH
    • D. less than 0.6 mH
      • Discuss
    • 8. A filter passes certain frequencies and rejects others.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. An RC low-pass filter consists of a 120 Ω resistor and a 0.002 µF capacitor. The output is taken across the capacitor. The circuit's critical frequency is

    • Options
    • A. 333 kHz
    • B. 633 kHz
    • C. 331 kHz
    • D. 60 kHz
      • Discuss
    • 10. A current of 200 µA through a 6.8 kΩ resistor produces a voltage drop of

    • Options
    • A. 34.4 V
    • B. 340 V
    • C. 13.6 V
    • D. 1.36 V
      • Discuss

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