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Home ‣ Electrical Engineering ‣ Transformers Comments
  • Question

  • An autotransformer is one in which the primary and secondary are automatically coupled.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 

    • Transformers problems

    Search Results

    • 1. A transformer consists of two or more cores that are electrically coupled on a common core.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. Five time constants are required for a capacitor to charge fully or discharge fully.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. XC is inversely proportional to frequency and capacitance.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. Energy is stored by a capacitor in a magnetic field.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. The true power in a capacitor is zero.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. A reflective load is a load as it appears to the source in the primary of a transformer.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. A transformer responds only to dc.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. A transformer changes ac to dc.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. A step-up transformer steps up power.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. The primary is the winding connected to the source, and the secondary is the winding connected to the load.

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

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