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Home ‣ Electrical Engineering ‣ Circuit Theorems and Conversions See What Others Are Saying!
  • Question

  • A 470 Ω RL is connected across a voltage source, VS, of 120 V. The source's internal resistance, RS, is 12 Ω. What is the output voltage across the load?


  • Options
  • A. 120 V
  • B. 0 V
  • C. 117 V
  • D. 12 V

  • Correct Answer
  • 117 V 

    • More questions

    • 1. In a parallel RC circuit, there is 100 mA through the resistive branch and 100 mA through the capacitive branch. The total rms current is

    • Options
    • A. 200 mA
    • B. 100 mA
    • C. 282 mA
    • D. 141 mA
      • Discuss
    • 2. The superposition theorem is useful for the analysis of single-source circuits.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. In an RC differentiator, responding to repetitive pulses, the average value of the output

    • Options
    • A. is zero
    • B. is equal to the input voltage
    • C. is 63 percent of the input voltage
    • D. cannot be determined
      • Discuss
    • 4. If a loop in a basic dc generator suddenly begins rotating at a faster speed, the induced voltage

    • Options
    • A. remains unchanged
    • B. reverses polarity
    • C. increases
    • D. decreases
      • Discuss
    • 5. Vout = 500 mV, and Vin = 1.3 V. The ratio Vout/ Vin expressed in dB is

    • Options
    • A. 0 dB
    • B. 8.30 dB
    • C. ?8.30 dB
    • D. 0.8 dB
      • Discuss
    • 6. Referring to Problem 23, the reactive power is

    • Options
    • A. 10 mVAR
    • B. 100 mVAR
    • C. 6.76 mVAR
    • D. 148 mVAR
      • Discuss
    • 7. A sinusoidal voltage with a peak-to-peak value of 18 V is applied to an RC low-pass filter. If the reactance at the input frequency is zero, the output voltage is

    • Options
    • A. 18 V peak-to-peak
    • B. zero
    • C. 9 V peak-to-peak
    • D. 12.74 V peak-to-peak
      • Discuss
    • 8. In an ac circuit, power to the load peaks at the frequency at which the load impedance is the complex conjugate of the output impedance.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. When converting 0.16 mA to microamperes, the result is

    • Options
    • A. 16 ľA
    • B. 160 ľA
    • C. 1,600 ľA
    • D. 0.0016 ľA
      • Discuss
    • 10. A simple three-phase generator consists of three conductive loops separated by 120°.

    • Options
    • A. True
    • B. False
      • Discuss

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