ECE 201 Lab 7 Worksheet

In the figure, the ideal batteries have emfs ℰ1 = 25.0 V and ℰ2 = 0.500ℰ1, and the resistances are each 2.14 Ω. (a) What is the current in resistor 2? ______________A(b) What is the current in resistor 3? ______________A (please show the units when working through the problem so that I can follow it easier)

Please answer this diligently. Other answers in the internet seems wrong. Please help me understand and solve this problem. I'll give a like. Thanks! Ig2sc = __________; Isc = __________; MVAsc = __________

Please answer the two questions, and in the other picture are the drawing we had made. (Which are the schematic symbol(types) of electrical loads, switches, resistors, logic gates, and diodes. Questions: 1.) Describe how lines and symbols best represent the components or devices. 2.) Enumerate the technique/s you applied in order to draw and remember the name and basic function of each schematic symbol.

ADVANCED PHYSICS (THUMBS UP WILL BE GIVEN. PLEASE CHOOSE THE CORRECT ANSWER. NO LONG EXPLANATION NEEDED.) Consider the circuit shown below. The cross-sectional areas of the battery, the wire, and the bulb filament are 10.0 cm2, 5.00 mm2 and 0.200 mm2 respectively. Which of the following statements is/are TRUE? I. The current density in the battery is greater than that in the bulb filament.II. The current densities in the battery, in the wire, and in the bulb filament are equal.III. The currents in the battery, in the wire, and in the bulb filament are equal.   choices: a. I and III only b. II only c. II and III only d. I only e. III only

Choose the correct answer and show your solution. *Kindly provide a COMPLETE and CLEAR solution* (Answer should be typewritten) *Please answer it ASAP if you can

(c) Sketch a circuit diagram of a complete power conversion circuit that would be used to connect a solar PV array to the grid. Briefly describe its operation, including mention of the types of power electronic switches that might be used along with their voltage/current ratings. Please solve this with in 1 hour

Please solve question no.6 and show a clear and readable solution. Choose the letter of the correct answer. Thanks!!!

We are running 3 wires and a ground in a RMC to a control panel with a 60 amp circuit breaker disconnect in the control panel. The conduit is run along the ceiling where the ambient air temperature is 100 degrees. The control panel feeds our secondary cooling pump. What size are the ungrounded conductors? All conductors have typeTHHN insulation. A   #6 AWG B   600 Kcmil C   #8 AWG D   #2 AWG What size RMC do we need? A   3" B   3/4" C   1" D   1 1/2"

An LED is a solid-state device. When connected to a dc source, the _________ in the LED __________ together, creating __________.

II- Research how engineers dispose of the waste produced by the generation of nuclear energy. Be specific and provide details. Please cite sources for all research completed while answering this question. Explain in detail regulations and environmental concerns that may apply (include a minimum of three – more is better). Be specific and provide details. Please cite all your sources. Which field(s) of engineering is involved with these disposal Projects? Are these fields of engineering of interest to you? Why or why not. Explain in detail    Answer all 3

Needs Complete typed solution with 100 % accuracy.

A computer's power supply converts mains AC to low-voltage regulated DC power for the internal components of a computer. You are building a new computer. You are deciding which type of power supply to install. Which of the following definitions BEST describes a valid type of power supply? Correct Answer: A single-rail power supply provides one rail (PCB trace). This provides the best safety for the computer by providing a single point of shutdown in the event of a short circuit. Correct Answer: A single-rail power supply provides one rail (PCB trace) used to always provide equal wattage to all devices attached to the power supply. Correct Answer: A dual-rail power supply provides separate rails (PCB traces) used to provide equal wattage to the devices attached to each rail. Correct Answer: A dual-rail power supply provides separate rails (PCB traces) used to balance the power load between multiple circuits, which prevents any one circuit from becoming overloaded.

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A load of 120 MW at a power factor of 0.65 lagging can be delivered by a 3-phase transmission line. The voltage at the receiving end is to be maintained at 63 kV and the loss in the transmission is 6 % of the power delivered. (Consider the line to be a short transmission line) Find Single phase Power delivered Per phase voltage Current flowing through the transmission line 3 Phase Losses in the transmission line Per phase resistance of the transmission line

1.  A quantity defined as amount of work done over time. _____________ 2. Types of material that has 4 valence electrons. _____________ 3. One Coulomb is equal to ____________ electrons or protons stored in a dielectric. 4. Best conductor material type.  _____________ 5. Best insulator material type. _____________ 6. The value of a resistor without considering its tolerance value percentages. _____________ 7. 1 picoampere (pA) is equal to __________ ampere (A).

Part 2: Analysis and selection of the Wind Turbine. The team decides at install a 30 MW wind farm. The turbine that has been selected by the local contractor is an Enercon wind turbine. The specifications of all the available Enercon wind turbine is shown in the attached datasheet. 1. Decide on the required number of wind turbines needed. 2. In your own words, explain what the Betz limit for wind turbines means.

In the figure below, R1 = 175 Ω, R2 = 55 Ω, and the ideal batteries have emfs ℰ1 = 8.0 V, ℰ2 = 5.5 V, ℰ3 = 2.0 V. (a) Find the current in resistor 1. ______________A(b) Find the current in resistor 2. ______________A(c) Find the potential difference between points a and b. ______________V (please show the units when working through the problem so that I can follow it easier)

An uncharged condenser in series with a 120V voltmeter of 10,000 ohms resistance is suddenly connected to a 100V battery. One second later, the voltmeter reads 60 volt. Determine the capacitance of the condenser.  *Round off the final answer to the nearest 4 decimal places with unit. Rounding off should only be done on final answer.

a) Write down and prove DeMorgan's theorem. b) Remove the following complements using DeMorgan's theorems. ______________________           _________________                   _____________ P+ Q + (C+D.E').  (F+G)

TOPIC: Power Systems, Power Plants & IlluminationINSTRUCTIONS:- Answer in this format: Given, Illustration, Required Conversion, Solution, Final Answer.- Step-by-step solution, do not skip even simple calculations to avoid confusion.- If answered in written form, make sure it is readable.PROBLEM:Two lamps are hung at a height of 9 m from the floor level. The distance between the lamps is one meter. Lamp one is of 500 candela. If the illumination on the floor vertically below this lamp is 20 lux, find the candle power of lamp number two. 570 candela 1140 candela 1710 candela 2280 candela

2.1 A  _______  creates electricity when exposed to sunlight. This process occurs due to electron movement in the molecule that comprise the cell.  a. Solar thermal collector b. Photovoltaic cell c. Water cell d. Battery   2.2 A(n) ________ system is an AC-producing PV system that is connected to the utility’s electrical power grid. a. Interconnected b. Stand-alone c. Interactive d. Backup   2.3 _______  system use a combination of two or more  power system to provide electricity. a. Wind b. Solar c. Renewable energy d. Hybrid   2.4 The ________ offers a certification program for PV installers. This certification is not a legal license to operate as a PV installer; it is intended to ensure that PV a. NABCEP b. OSHA c. NEC d. UL

choose the correct answer In solar power plant, the cost of concentrating collector is more than flat platecollector.    TRUE or FALSE

From the picture of panel  name plate, explain each and every parameter displayed in it in a brief manner.

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Write short note on the below mentioned questions, Each question carries one mark. Students has to answer the questions typewritten in the word (.docx) format. Figures / Diagrams, equations and solving of problems should be written by hand. Take a picture of it and attach it inside the word file. a) High Voltages are preferred for Transmission of Electricity. Why? b) Why Generation Voltage Levels are low in the range of 11 kV/ 33 kV etc? C) Why ACSR Conductors are preferred over Copper Conductors? d) Overhead Transmission Lines are preferred for Transmission of Power for Long Distances, why? e) Alternating Current is preferred over Direct Current in Power System, Why? f) Write the Installed Generation Capacity of Sultanate of Oman with current energy share of Conventional and Non-Conventional Energy Sources. g) Why the Capacitance effect is neglected in Short Transmission Line. h) Distinguish between Lumped or Distributed elements in a Transmission Line.

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explain breifly  the homework question

1.1 PV modules can be wired together in an array using ______ connections to increase voltage. a. Terminating b. Series c. Parallel d. AC 1.2 A PV module, also called a solar panel, is comprised of individual photovoltaic _______ wired and mounted together as an integrated unit. a. Capsules b. Compartments c. Chips d. Cells   1.3 A __________ system uses a storage system that stores the generated electricity so it can provide during times when the system’s panels are not receiving solar energy. a. Direct coupled b. Self regulating c. Charge controlled d. Indirectly connected   1. 4 __________ energy may have the potential to supply all of the world's energy needs, but at this time, it provides a very small percentage. a. Coal b. Natural Gas c. Diesel d. Solar