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Home ‣ Electrical Engineering ‣ Three-Phase Systems in Power Applications See What Others Are Saying!
  • Question

  • In a Y-connected generator, there is a 120° difference between each line voltage and the nearest phase voltage.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 

    • More questions

    • 1. The node voltage method is based on Kirchhoff's voltage law.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. If the rms voltage drop across a 15 kΩ resistor is 16 V, the peak current through the resistor is

    • Options
    • A. 15 mA
    • B. 1.5 mA
    • C. 10 mA
    • D. 1 mA
      • Discuss
    • 3. Referring to Problem 8, assume the input voltage is 15 V ac. What is the output voltage at the critical frequency,fc?

    • Options
    • A. 0 V
    • B. 7.07 V
    • C. 15 V
    • D. 10.6 V
      • Discuss
    • 4. A certain series RLC circuit with a 200 Hz, 15 V ac source has the following values: R = 12 Ω, C = 80 µF, and L = 10 mH. The total impedance, expressed in polar form, is

    • Options
    • A. 12.28∠12.34° Ω
    • B. 12.57∠12.34° Ω
    • C. 9.95∠12.34° Ω
    • D. 12.62∠12.34° Ω
      • Discuss
    • 5. Which of the following capacitors is polarized?

    • Options
    • A. mica
    • B. ceramic
    • C. plastic-film
    • D. electrolytic
      • Discuss
    • 6. The total resistance of a circuit is 680 Ω. The percentage of the total voltage appearing across a 47 Ω resistor that makes up part of the total series resistance is

    • Options
    • A. 68%
    • B. 47%
    • C. 69%
    • D. 6.91%
      • Discuss
    • 7. When a 6 V battery is connected across the primary of a transformer with a turns ratio of 8, the secondary voltage is

    • Options
    • A. 0 V
    • B. 6 V
    • C. 48 V
    • D. 0.75 V
      • Discuss
    • 8. The complex number 40∠ 55° is equivalent to

    • Options
    • A. 55 + j55
    • B. 40 + j40
    • C. 45.88 + j65.52
    • D. 22.94 + j32.76
      • Discuss
    • 9. The number 3.2 × 10?5 A expressed using a metric prefix is

    • Options
    • A. 32 µA
    • B. 3.3 µA
    • C. 320 mA
    • D. 3,200 mA
      • Discuss
    • 10. In a five-branch parallel circuit, there are 12 mA of current in each branch. If one of the branches opens, the current in each of the other four branches is

    • Options
    • A. 48 mA
    • B. 12 mA
    • C. 0 A
    • D. 3 mA
      • Discuss

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