Open Club  ·  11 members

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Engineering Subjects

### Description

1. What's new in this club
2. ## 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?

Where is Fig 1-19? How can anyone answer with such a poorly stated question? DrD
3. ## What is power factor?

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
4. ## What are real, reactive, and apparent power?

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
5. ## Will current be leading or lagging voltage in an inductive load?

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
6. ## Just how does a decrease in flux produce an increase in speed in a linear machine?

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
7. ## 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?

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
8. ## Why is the linear machine a good example of the behavior observed in real de machines?

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
9. ## What conditions are necessary for a magnetic field to produce a voltage in a wire?

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
10. ## What conditions are necessary for a magnetic field to produce a force on a wire?

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
11. ## What is Faraday's law?

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
12. ## Why are all cores exposed to ac flux variations laminated?

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
13. ## What are eddy current losses?

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
14. ## What is hysteresis?

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
15. ## How does the relative permeability of a ferromagnetic material vary with magneto motive force?

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
16. ## What is a ferromagnetic material?

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
17. ## What is reluctance?

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
18. ## How does the magnetic circuit concept aid in the design of transformer and machine cores?

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
19. ## What is magnetizing intensity?

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
20. ## What is Ampere's law?

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
21. ## What is torque?

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
22. ## Can a 60-Hz transformer be operated on a 50-Hz system?

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
23. ## Explain why the open-A transformer connection is limited to supplying 57.7 percent of a normal A-A transformer bank's load.

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
24. ## How can three-phase transformation be accomplished using only two transformers?

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
25. ## What is a TCUL transformer?

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
26. ## What are the problems associated with the Y-Y three-phase transformer connection?

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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