Question No. 10 Electric supply of a house is through a 15 A fuse. When a 2000 W heater is used in this house, how many 100 W bulbs can be used simultaneously? The supply is at 220 V, the heater and the bulbs are rated for 220 V. 11 15 17

Q: Which statements are correct? The efficiency of nuclear power plants is greater than natural gas…

A: Nuclear power plant Nuclear power plant is the type of power plant which uses a nuclear fission to…

Q: QUESTION 22 A solar water heating system is to be located in southern England at a latitude of 50°.…

A: Given data: The latitude is, 50o. To calculate the tilt angle of solar panel we have to add the…

Q: Explain the Thomson effect, and the figure of merit for thermoelectric materials

A: When an electric current runs through a circuit comprised of a single material with a…

Q: How do designing of AC system done in buildings with forced ventilation?

A: 1. By the process of ventilation there is an exchange of quality of air with human comfort. 2. There…

Q: On-grid PV system has two sources of power: utility grid and the sun a. True O b. False

A:

Q: Mini-split AC units commonly has a SEER rating of 20 or more. If the unit uses 8,645 watts of energy…

A: Given data:

Q: In a 20KVA, 2000 / 200 V power transformer, the iron and full load copper losses are 360W and 425W…

A: Answer:

Q: Large transformers, when used for some time, become very hot and are cooled by circulating oil. The…

A: (C) both the heating effect of current and hysteresis loss Hysteresis losses result each time the…

Q: 10. Explain the benefit of power factor in material in a thermoelectric.

A: The thermoelectric effect is the transfer of temperature variations to electric voltage and back…

Q: The service of the selected alternative is required on a continuous basis. True or false?

A: Alternatives: The alternatives are basically used in decision making process and identified for…

Q: Discuss the importance of using (1 ?electrical transformers cuss the most important types of (2…

A:

Q: 2. Pounds of fuol per kw-hr

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: What are the different Heat pump circuits? Explain any one of them with the help of neat sketch

A: given; three types of different circuit for heat pump. air to air water source geothermal

Q: Calculate the equivalent resistance between A and B. A 3 ohm ww 9-ohm 5 ohm 4 ohm B 1.5 ohm O a. 1.5…

A: Option d is correct 2.2ohm

Q: How to receive heat from a high-temperatureDefine the sources.

A: Thermal Engine: A thermal engine is a device which used the energy from a high-temperature source to…

Q: State and explain the two parameters that characterise the design core thermal performance of a…

A: given; state and explain the two parameters that characterize the design core thermal performance of…

Q: The unit of discharge in m /kg

A: It is False

Q: What is the total current in a circuit that has two  electric heating elements that have resistance…

A: Given data: The resistance of one electric heating element is R1 = 5 Ω. The resistance of another…

Q: True or False: The defrost timer motoroperates continuously in Figure 6.18.

A: EFM = Evaporator fan motorC = CompressorLPS = Low - Pressure switchHPS = High-pressure switchCFM =…

Q: If the core loss of single phase transformer at full load is 294 W, then the core loss at 25% of…

A: Core loss is always constant does not depend on load condition , it is always constant at every load…

Q: Identify the device which requires external electrical energy source. a. Thermocouple b.…

A: Option B  Thermistor

Q: What are breeder reactors?

A: A breeder reactor is a nuclear reactor that generates more fissile material than it consumes.…

Q: A Transformer having 1000 Primary turns connected to a 264 V a.c. supply. For a secondary Voltage of…

A: Data given-  N1 = 1000  V1 = 264 V V2 = 432 V

Q: In a 15KVA, 2000 / 200 V power transformer, the iron and full load copper losses are 370W and 415W…

A: Given Data  Power output = 15KVA Ans(i) At full load 0.8 PF Copper loss = 415 w  Core losses = 370W…

Q: A dry-type general-purpose power transformer is observed to be operating above its rated tempera- to…

A: There are several possible causes for a dry-type general-purpose power transformer operating above…

Q: If the core loss of single phase transformer at full load is 177 W, then the core loss at 50% of…

A:

Q: The unit of discharge in m3/kg Select one: True False

A: Basic units: Area = m 2 Velocity = m/s

Q: What happens to an electrical circuit when thereis unwanted resistance in it?

A: Given Data : Electric circuit

Q: 4. In a home, do you think lights are wired in parallel or series? 5. Does Ohm's law apply to…

A: The answers are provided below

Q: In two cities, the first one has mostly a very hot and clouded weather but the second city has…

A:

Q: Describe how a solar chimney power plant operate

A:

Q: What is the Relay Number and its law?

A: Rayleigh Number It is the product of grashof No. and Prandtl No. Grashof No. shows the relation…

Q: Which one of the below is not the source of UV radiation? Sunlight Electric arc…

A: UV radiation is a form of electromagnetic radiation that comes from sun and some man made sources.…

Q: The generation of EMF in one circuit with changes in another circuit is called O a. Faraday Law O b.…

A: Option D is correct.

Q: Compare the reliability of A with B. Solve the question and write which one is a better design. UPS…

A: UPS MTBF = 150,000 HR   GEN MTBF = 273,750 HR Exp = Reliability (-\lambdat) (1/lambda) = MTBF IN THE…

Q: Which form of renewable energy occupies limited space? 1-Wind Energy with more turbines 2-Solar…

A: 1) Wind energy with more turbines needs an unchanging and uninterrupted flow of air to work…

Q: Define a cycle ΔE = 0, thus Q = W.

A: The first law of thermodynamics is also known as law of conservation of energy which states that…

Q: How does the motor work of a simple electromagnetic works?

A: Given Data⇒ Motor of a simple electromagnetic. Problem statement⇒ Problem says How does the motor of…

Q: In a 20KVA, 2000 / 200 V power transformer, the iron and full load copper losses are 355W and 405W…

A:

Q: A 3 kVA motor operates from a 240 V supply at 50 Hz and has a power factor of 0.6. Determine the…

A: option (a) 1800 W is correct answer

Q: 10. The output voltage of a turbine is 224 V at no load and 218 V at full load. How much is the…

A: Here qw know that resistance remains unchanged due to loading and unloading so keeping resistance…

Q: Problem 8.2 The power source characteristics is given by l²=- 350 (V – 90) and the volt- age-length…

A:

Q: Is the heat anticipator in series or parallel with the thermostatcontacts?

A: A heat anticipator is a device that is used to fine-tune the point at which the thermostat turns off…

Q: What are common efficiencies for transformers?

A: Given data : Transformers

Radiation

Radiation can be described as the energy in the form of a particular matter or electromagnetic waves traveling in the air and can be in the form of light, sound, and heat. Radiation can be detected through special instruments like X-rays. The radiation from a cooler object is less intense as compared to the radiation from hot objects.