logo

CuriousTab

CuriousTab

Discussion


Home Electrical Engineering Transformers See What Others Are Saying!
  • Question
  • In a certain loaded transformer, the secondary voltage is one-fourth the primary voltage. The secondary current is


  • Options
  • A. one-fourth the primary current
  • B. four times the primary current
  • C. equal to the primary current
  • D. one-fourth the primary current and equal to the primary current

  • Correct Answer
  • four times the primary current 


  • More questions

    • 1. A short in a series circuit prevents current.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. Three hundred joules of energy are consumed in 15 s. The power is

    • Options
    • A. 2,000 W
    • B. 2 W
    • C. 20 W
    • D. 200 W
    • Discuss
    • 3. An autotransformer is one in which the primary and secondary are automatically coupled.

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. The tesla is the unit of magnetic flux.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. Watt's law states the relationships of power to energy.

    • Options
    • A. True
    • B. False
    • Discuss
    • 6. The capacitor voltage always leads the current by 90°.

    • Options
    • A. True
    • B. False
    • Discuss
    • 7. If a 6 V and a 9 V source are connected series aiding, the total voltage is

    • Options
    • A. 6 V
    • B. 9 V
    • C. 3 V
    • D. 15 V
    • Discuss
    • 8. Total current in an RC circuit always leads the source voltage.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. In 40 kW, there are

    • Options
    • A. 0.4 mW
    • B. 40,000 W
    • C. 400 W
    • D. 5,000 W
    • Discuss
    • 10. Energy is stored by a capacitor in a magnetic field.

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


    Comments

    There are no comments.

Enter a new Comment