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Home ‣ Electrical Engineering ‣ Parallel Circuits See What Others Are Saying!
  • Question

  • Three lights are connected in parallel across a 120 volt source. If one light burns out,


  • Options
  • A. the remaining two will glow dimmer
  • B. the remaining two will glow brighter
  • C. the remaining two will not light
  • D. the remaining two will glow with the same brightness as before

  • Correct Answer
  • the remaining two will glow with the same brightness as before 

    • More questions

    • 1. When 12 V are applied across a 68 Ω resistor, the current is

    • Options
    • A. 816 mA
    • B. 17.6 mA
    • C. 176 mA
    • D. 8.16 mA
      • Discuss
    • 2. For the circuit shown, determine ZTH for the portion of the circuit external to RL.


    • Options
    • A. 66.7 ∠?33.7° kΩ
    • B. 6.67∠?333.7° kΩ
    • C. 14.4 ∠?56.3° kΩ
    • D. 1.44 ∠?33.7° kΩ
      • Discuss
    • 3. An equivalent circuit is one that produces the same voltage and current to a given load as the original circuit that it replaces.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. When the current through an inductor is cut in half, the amount of energy stored in the electromagnetic field

    • Options
    • A. is quartered
    • B. quadruples
    • C. doubles
    • D. does not change
      • Discuss
    • 5. If a transformer has 50 turns in the primary winding and 10 turns in the secondary winding, what is the reflective resistance if the secondary load resistance is 250 Ω?

    • Options
    • A. 250 Ω
    • B. 25 Ω
    • C. 6,250 Ω
    • D. 62,500 Ω
      • Discuss
    • 6. The circuit phase angle is the angle between the total current and the applied (source) voltage.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. Faraday's law states that relative motion between a magnetic field and a coil induces a voltage across the coil.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. A capacitor of 2,000 pF is greater than

    • Options
    • A. 0.02 µF
    • B. 0.002 µF
    • C. 0.0002 µF
    • D. 0.0000002 F
      • Discuss
    • 9. When the turns ratio of a transformer is 20 and the primary ac voltage is 12 V, the secondary voltage is

    • Options
    • A. 12 V
    • B. 120 V
    • C. 240 V
    • D. 2,400 V
      • Discuss
    • 10. Resistance is measured in

    • Options
    • A. henries
    • B. ohms
    • C. hertz
    • D. watts
      • Discuss

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