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

  • In a △-connected source driving a △-connected load, the


  • Options
  • A. load voltage and line voltage are one-third the source voltage for a given phase
  • B. load voltage and line voltage are two-thirds the source voltage for a given phase
  • C. load voltage and line voltage cancel for a given phase
  • D. load voltage, line voltage, and source phase voltage are all equal for a given phase

  • Correct Answer
  • load voltage, line voltage, and source phase voltage are all equal for a given phase 

    • More questions

    • 1. The current through a 120 mH coil is changing at a rate of 150 mA/s. The voltage induced across the coil is

    • Options
    • A. 1.8 mV
    • B. 18 mV
    • C. 180 mV
    • D. 1.25 mV
      • Discuss
    • 2. A Wheatstone bridge consists of four resistors in parallel.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. A resistor normally opens when it burns out.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. The branch current method is based on Kirchhoff's voltage law and Kirchhoff's current law.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. The watt is the unit of power.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. In an RL low-pass filter, the output voltage is taken across the inductor and the output lags the input.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. Find I1.

      4I1 + 4I2 = 2
      6I1 + 7I2 = 4


    • Options
    • A. 0.5 A
    • B. 50 mA
    • C. ?0.5 A
    • D. ?50 mA
      • Discuss
    • 8. A sinusoidal current has an rms value of 14 mA. The peak-to-peak value is

    • Options
    • A. 45.12 mA
    • B. 16 mA
    • C. 39.6 mA
    • D. 22.6 mA
      • Discuss
    • 9. The ability of a material to remain magnetized after removal of the magnetizing force is known as

    • Options
    • A. permeability
    • B. reluctance
    • C. hysteresis
    • D. retentivity
      • Discuss
    • 10. If the rms current through a 6.8 kΩ resistor is 8 mA, the rms voltage drop across the resistor is

    • Options
    • A. 5.44 V
    • B. 54.4 V
    • C. 7.07 V
    • D. 8 V
      • Discuss

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