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

  • In applying the superposition theorem,


  • Options
  • A. the sources are considered one at a time with all others replaced by their internal impedance
  • B. all sources are considered independently
  • C. all sources are considered simultaneously
  • D. the sources are considered one at a time with all others replaced by their internal resistance

  • Correct Answer
  • the sources are considered one at a time with all others replaced by their internal impedance 

    • More questions

    • 1. The term squirrel-cage applies to a type of three-phase ac generator.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. An alternator is an electromechanical ac generator.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. All coil cores are made of iron.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. The output voltage is 63.3% of its maximum at the critical frequencies.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. The flat portions of a pulse waveform contain low-frequency components.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. In an RC differentiating circuit, the output voltage is taken across the resistor.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. A certain transformer has 400 turns in the primary winding and 2,000 turns in the secondary winding. The turns ratio is

    • Options
    • A. 0.2
    • B. 0.4
    • C. 5
    • D. 25
      • Discuss
    • 8. The rising and falling edges of a pulse waveform contain the higher frequency component.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. A steady-state condition is reached when

    • Options
    • A. the output voltage reaches the average value of the input voltage
    • B. the output voltage reaches the input voltage
    • C. the output voltage reaches approximately 63% of the input voltage
    • D. the output voltage reaches the effective value of the input voltage
      • Discuss
    • 10. When a 15 V input pulse with a width equal to two time constants is applied to an RC integrator, the capacitor charges to

    • Options
    • A. 15 V
    • B. 12.9 V
    • C. 8.6 V
    • D. 19.45 V
      • Discuss

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