Para maximizar la transmisión de potencia a la línea la impedancia de entrada de la línea debe ser Zin=Zg*.
Para conseguir esta impedancia de entrada proceda como se le indica en los apartados c) y d).
Determine:
c) La mínima longitud de la línea (en longitudes de onda) para que la parte real de su admitancia de entrada sea 8×10-3 Ω-1. Determine el valor de dicha admitancia de entrada. (10 puntos)
Si no ha resuelto el apartado (a) tome Z0=50Ω.
d) La admitancia Y que debe colocarse en paralelo a la entrada de la línea para que el generador vea una impedancia de entrada a la línea igual al conjugado de su resistencia interna. Verifique que efectivamente ahora Zin=Zg*. (5 puntos)
Si no ha resuelto el apartado (b) tome Yin=0.008+j0.016 Ω-1.
e) La potencia media entregada a la carga en las condiciones del apartado (d). (3 puntos)
To maximize power transmission to the line the line input impedance must be Zin = Zg *.
To achieve this input impedance proceed as indicated in sections c) and d).
Determine:
c) The minimum length of the line (in wavelengths) so that the real part of its input admittance is 8 × 10-3 Ω-1. Determine the value of that input admittance. (10 points)
If you have not solved section (a) take Z0 = 50Ω.
d) The admittance Y that must be placed in parallel to the input of the line so that the generator sees an input impedance to the line equal to the conjugate of its internal resistance. Verify that effectively Zin = Zg * now. (5 points)
If you have not solved section (b) take Yin = 0.008 + j0.016 Ω-1.
e) The average power delivered to the load under the conditions of section (d). (3 points)
In: Electrical Engineering
In: Electrical Engineering
WHAT DO YOU MEAN BY DOPPLER SPREAD AND CHOREANCE TIME?
In: Electrical Engineering
What hygroscopic property means in practice?
Select one:
a. Material property to bind moisture and release it out.
b. Material property to prevent air flows.
c. Material property to insulate.
What is the main parameter to get the best efficiency out from the heat pump?
Select one:
d. Low input temperature of the heat pump.
e. High output temperature of the heat pump.
f. Low temperature difference between input and output of the heat pump.
Floors can be kept as heat storage. Calculate how much energy (kWh) per one Celsius degree can be stored to a concrete floor if its thickness is 10 cm and area 100 m2.
Select one:
g. 50–60 kWh/°C
h. 0.5–0.6 kWh/°C
i. 5–6 kWh/°C
In: Electrical Engineering
What does it mean to have a comprehensive perspective?
A. |
When one shows moral concern involving a commitment to obtain and properly assess all avaialble information that is pertinent to meeting moral obligations |
|
B. |
When one accepts moral responsibility for their actions. |
|
C. |
When one is sensitive to the full range of moral values and responsibilities relevant to a situation and is willing to develop the skill and expend the effort needed to reach a reasonable balance among those considerations |
|
D. |
When one's moral conduct and principles of action are their own. |
In: Electrical Engineering
1.Write down the properties and the types of insulating materials used in the construction of power and distribution transformers.
2. What are the different types of magnetic materials? Distinguish between hard and soft magnetic materials.
3.Explain Hall effect, hall coefficient and its value in different semiconductor
4.Explain with graphical representation the variation of mobility with temperature
5.Give the general electrical and magnetic characteristics of ferrites. List its applications
In: Electrical Engineering
Please give brief descriptions and examples with diagrams on
envelope in signal
txco
vccio
In: Electrical Engineering
There are two types of propagation delay, identify and give their descriptions.
In: Electrical Engineering
Whats final project ideas for a electrical engineering major. Include all your work from your final project.
In: Electrical Engineering
Two professional engineers with similar backgrounds and expertise in electrical engineering are assigned to the same project because of time constraints and other factors, but are given responsibility for different parts of the project. Engineer A prepares, designs, and stamps the design documents for which he is responsible, and Engineer B prepares, designs, and stamps the design documents for which he is responsible. The project and design documents are released for construction. A change in project scope requires revision to a subset of the design documents. Both Engineer A and Engineer B make their respective changes and revise the design documents for which they are responsible. It is the practice of the company that the engineers’ work requires a professional engineer to manually "initial" the revision block of the document being revised, identifying the responsible engineer. Engineer A delays release of his revisions which causes completed revisions by Engineer B also to be held until all design documents are ready to be released. Management strongly encourages Engineer A to complete his work so that all design documents can be released. Engineer A completes his work at a point in time when neither Engineer B nor immediate management is available. In completing his work at the behest of management, Engineer A makes minor changes to design documents prepared and revised by Engineer B without consulting Engineer B. It is understood that Engineer A was technically competent to make the revisions of Engineer B’s work.
Is it ethical for Engineer A to make the change? Why?
Could the Engineering Manager or Chief Engineer in charge signoff the work of his/her employees?
What is the ethical course of action?
What could happen if the proper process is not followed?
In: Electrical Engineering
1) DEFINE SIMPLY CONFLICT OF INTEREST WITH TWO EXAMPLES
2) DEFINE TYPES OF CONFLICT OF INTEREST WITH TWO EXAMPLES OF EACH ( EXAMPLES SHOULD BE FROM ENGINEERING)
3) GIVE POINTS OR METHODS TO OVERCOME OR RESOLVE CONFLICT OF INTEREST
4) GIVE A GRAND EXAMPLE OF ENGINEERING THAT INVOLVES ALL TYPES OF CONFLICT OF INTERESTS
In: Electrical Engineering
Prepare a two-page project proposal dealing with electrical engineering technology. You should research the field of electrical engineering technology and come up with a project idea that is relevant and appropriate.
In: Electrical Engineering
describe several project evaluation criteria
In: Electrical Engineering
Give a example for a simple engineering problem which includes, ProblemDescription, Data and Information/Collection, Definition of Design Variables , Optimization Criterions ,Formulation of Constraints with steps
In: Electrical Engineering