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Engineering Subjects

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  1. What's new in this club
  2. What is power factor? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  3. What are real, reactive, and apparent power? What units are they measured in? How are they related? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  4. Will current be leading or lagging voltage in an inductive load? Will the reactive power of the load be positive or negative? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  5. Just how does a decrease in flux produce an increase in speed in a linear machine? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  6. The linear machine in Figure 1-19 is running at steady state. What would happen to the bar if the voltage in the battery were increased? Explain in detail. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  7. Why is the linear machine a good example of the behavior observed in real de machines? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  8. What conditions are necessary for a magnetic field to produce a voltage in a wire? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  9. What conditions are necessary for a magnetic field to produce a force on a wire? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  10. What is Faraday's law? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  11. Why are all cores exposed to ac flux variations laminated? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  12. What are eddy current losses? What can be done to minimize eddy current losses in a core? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  13. What is hysteresis? Explain hysteresis in terms of magnetic domain theory. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  14. How does the relative permeability of a ferromagnetic material vary with magneto motive force? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  15. What is a ferromagnetic material? Why is the permeability of ferromagnetic materials so high? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  16. What is reluctance? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  17. How does the magnetic circuit concept aid in the design of transformer and machine cores? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  18. What is magnetizing intensity? What is magnetic flux density? How are they related? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  19. What is Ampere's law? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  20. What is torque? What role does torque play in the rotational motion of machines? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  21. Can a 60-Hz transformer be operated on a 50-Hz system? What actions are necessary to enable this operation? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  22. Explain why the open-A transformer connection is limited to supplying 57.7 percent of a normal A-A transformer bank's load. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  23. How can three-phase transformation be accomplished using only two transformers? What types of connections can be used? What are their advantages and disadvantages? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  24. What is a TCUL transformer? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  25. What are the problems associated with the Y-Y three-phase transformer connection? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
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