9. An instrument used to measure electrical energy. kw- hr meter kw meter wattmeter voltmeter
Q: (9) The coefficient of performance of a residential heat pump is 1.95. If the input power to this…
A: The coefficient of performance of a pump is the ratio of heat produced in the pump to the amount of…
Q: Electrical power can be measured with the help of O ohmmeter O ammeter wattmeter O voltmeter
A: Ohmmeter measures resistance. Ammeter measures current. Voltmeter measures Voltage. While electrical…
Q: 600. An electric water heater has a rating of kW, 230 V. The coil used as the heating element is 10…
A: GivenPower rating(P)=1KWVoltage rating(V)=230vLength of heating element( L)=10mresistivity…
Q: Q3) For a 20 A, 230 V energymeter, the number of revolutions per kWh is 480. on test at full load,…
A: In this question we will find error in energy meter reading and will also find that meter is running…
Q: Determine the resistance its proper source voltage of 110 V. of a 75-W lightbulb connected to
A: Given: Rating of bulbs, Rated power, P=75 W Source voltage, Vs=110 V
Q: A 1.1 kW electric heater is operating with 220 V and it is running for 2 hours. Calculate the…
A: Power of electronic heater=1.1kW=1100W Operating voltage=220 Volt
Q: 7. An ampere-hour meter calibrated at 200 V is used on 220 V circuit and indicates a consumption of…
A: Consider the meter is calibrated at 200 V. The meter is used on 220 V circuit. Consider the…
Q: A business uses two 3 kW electrical fires for an average duration of 20 hours per week each, and six…
A:
Q: You have a Switch LED Lightbulb with the following information: It is equivalent to a 40 Watt…
A: We need to find out ownership cost for given details .
Q: B/I A 60 MW steam power station has a thermal efficiency of 30%. If the coal burnt has a calorific…
A:
Q: The power dissipated by an electric bulb is 40 W and the current flowing through the electric bulb…
A: Given, Power dissipation, P = 40 W Current flowing, I = 1.6 A
Q: A current of 2A flows in a wire offering a resistance of 10ohm. Calculate the energy dissipated by…
A: Given: Resistance, R=10 Ω Current, I=2 A Time, t=0.5 hr
Q: An electric saw operates at a potential difference of 120 V and draws a current of 9.5 A. If it…
A: Total energy required is 45.6 kJ Detail solution is in the image
Q: Determine V, I and the Power absorbed by each element in the given circuit.
A: The given circuit diagram is shown below:
Q: have a Switch LED Lightbulb with the following information: It is equivalent to a 40 Watt…
A: We need to find out total cost .
Q: 4. A 60 MW steam power station has a thermal efficiency of 30%. If the coal burnt has a calorific…
A: (a) As electrical efficiency is not mentioned in the problem so overall efficiency will be given…
Q: 2. Explain the difference of power and energy.
A: IMPORTANCE OF OHMS LAW: Ohm’s law is vitally necessary to describing electrical circuits as a…
Q: (b) How long can a 205-W television set be on before using more than 4 kWh of energy?
A: Given data, For a television P=205 WE=4 kWh
Q: Calculate the power rating of a range element that draws 7.5 amperes of current when connected to…
A: Power rating= voltage rating of element × current drawn by the element Given rated voltage =230…
Q: Q3) For a 20 A, 230 V energymeter, the number of revolutions per kWh is 480. If on test at full…
A: In this question energy meter is given...We have to find out error in measurement of energy....Also…
Q: 36. A stove element draws 15 A when connected to 230 V line. How long does it take to consume one…
A: we need to find out time t.
Q: A 60 MW steam power station has a thermal efficiency of 30%. If the coal burnt has a calorific value…
A:
Q: B/I A 60 MW steam power station has a thermal efficiency of 30%. If the coal burnt has a calorific…
A:
Q: If wind was blowing 10 m/s, what is the max. power that can be generated from the wind hitting the…
A: Given: Speed of wind, v=10 m/s Blade length, r=30 m Assume turbine at sea level.
Q: The power to a device is 40 joules per second (J/s). How long will it take to deliver 640J?
A: Given data: To power the device power required is P= 40 Joules/sec The energy required to be…
Q: 8.An electric kettle is required to heat 0.6 kg of water from 10°C to boiling point in 5 minutes,…
A: In this question we will find resistance of heating element for electric kettle.....
Q: 1. A d.c. electric motor consumes 72 MJ when connected to 400 V supply for 2 h 30 min. Find the…
A:
Q: Determine the resistance of a soldering iron which takes a current of 12 A from a 240 V supply. Find…
A: The solution can be achieved as follows.
Q: Which is not an appropriate option? PV module can used a. For charging street light battery b. In…
A: Uses of PV modules
Q: Use data from a trustworthy source to compare historic and current energy usage and then apply this…
A: Energy has unique and a crucial function in this world; no action can happen without the flow of…
Q: Find the electrical current in amperes and electrical power in watts VOLTAGE: 231V -take note of a…
A:
Q: 1000MW thermal plant has an overall efficiency of 34%. If the coal used has a heating value of…
A: In this question we will find coal consumption of given plant per hour with given data..
Q: 4. A 60 MW steam power station has a thermal efficiency of 30%. If the coal burnt has a calorific…
A:
Q: The 12-gauge copper wire in a typical residential building has a cross-sectional area of 3.31x10 -6…
A:
Q: 8. A light bulb, having a tungsten-filament, draws 2.85 A at 220 V when running at normal condition.…
A: Resistance at any temperature =( resistance at 17 degrees )×(1+(temperature coefficient of…
Q: An air conditioner draws current measuring 11 A. If it runs for 8 hours, calculate the number of…
A: We know that Current (i) = q/t Where q = charge (coulombs) t= time (seconds)
Q: Q.2) What are the two ways to Produce Wind
A: According to the given question, it is required to determine how to produce the wind energy . The…
Q: 8Ω ww 8Ω 10N
A: We have given the following circuit to find the equivalent resistance
Q: A person working on a steel structure while standing on ground. An accident occurred where 7 A pass…
A:
Q: 8.8 The average voltage of a battery is 13.56 V when charged at 5 A, and the average voltage is…
A: given data:
Q: A 60 MW steam power station has a thermal efficiency of 30%. If the coal burnt has a calorific value…
A: Efficiency= 30% Rated(Given) output = 60MW Efficiency= OutputInput 30%=60MWInput(MW)Input=60MW0.3…
Q: Find the power supplied or absorbed by the voltage source and current source respectively. Ry RI Is…
A:
Q: 9. A current of 2A flows in a wire offering a resistance of 10ohm. Calculate the energy dissipated…
A:
Q: 4. A 60 MW steam power station has a thermal efficiency of 30%. If the coal burnt has a calorific…
A: In this question we need to find the coal consumption per kilowatt hours and coal consumption per…
Q: B/I A 60 MW steam power station has a thermal efficiency of 30%. If the coal burnt has a calorific…
A:
Q: HW 1: How much current, i, is drawn by an electrical device with resistance 15 N at 110 V?
A: Dear student as per our guidelines we are supposed to solve only one question.kindly repost other…
Q: A stove element draws 15 A when connected to a 120 V line, the time it takes . .to consume 30 kJ
A: We know the relation between power and energy as Energy(E)=Power(P)*time(t) The units of energy is…
Q: POWER GENERATION Identify the different farming activities that use electricity. Discuss the…
A: Electricity become essential for agriculture because it increases efficiency of a farmer. Without…
Q: A solar PV system is giving 1 kW power to a load. Size of each cell in the solar panel is 10 cm x 10…
A: Here we will use formula for output solar power for N solar cell . Then we will find N (number of…
Q: A power station burn 0.5 kg of fuel per kwh. Assume the fuel has an calorific value of 7500…
A: A power station burn 0.5Kg of fuel per Kwh.Assume the fuel has an calorific value of 7500…
Subject: Circuits
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- Please assume a price for electric energy of $0.15/kWh. If washer A costs $750 and uses 200 kWh of energy per year to operate, and washer B costs $300 and uses 800 kWh of electricity per year to operate, which of the two washers costs less to own and operate over a period of ten years?Calculate the power rating of a range element that draws 7.5 amperes of current when connected to its rated voltage of 230V.Find output power and efficiency of a Solar module if the voltage is 27.3 V, Current is 12.7A 2 and area of the module is 2.1 m . Power density of sunlight is 1000 W/m2
- It is required to provide illumination of 150 meter- candle in a factory hall 45 m x 15 m. . Assume that the depreciation factor is 0.80, the coefficient of utilization is 0.40 and the efficiency of the lamp is 20 lumens per watt. Calculate the number of 250 W lamps. a. 60 b. 72 c. 63 d. 56A no. 000 AWG wire is 100 meters long. For no. 000 wire, it has a wire resistance of 0.0618 ohms per 1000ft. Determine the power loss if the current flowing through the wire is 18 amperes.A copper transmission line is to be replaced by one of aluminum having the same total resistance. If the cross sectional area of the copper wire is 0.005m2 , what would be the cross sectional area of the new aluminum wire? *Draw the diagram
- How to convert Mechanical Horsepower to Watt? Convert 2.55 Hp to watts.What does SI stand for in the National Electrical Code? Select one: a. single length b. metric c. single gang d. single widthYou have a Switch LED Lightbulb with the following information: It is equivalent to a 40 Watt incandescent lightbulb. It uses 8 Watts of electricity. It is estimated to last 25,000 hours. The purchase price of the lightbulb is $37.99. The package claims an estimated energy cost of $0.96 per year, but this estimate is not based on local electricity costs. Assume that local electricity costs $0.086 per kW-hr. Based on this information, we can now calculate the cost of ownership for this bulb. The cost of ownership is defined as the purchase price of the lightbulb plus the cost of the electricity required to run the lightbulb until failure. Note the equation below: Purchase price + Total electricity cost = Cost of ownership Calculate the cost of ownership for this lightbulb $37.99 $75.98 $55.19 $40.14
- An electric range has a constant current of 1.6 A entering positive voltage terminal with a voltage of 220V. If electric energy costs 8.3 pesos per kilowatt-hour, determine the cost of operating the range for two hours in pesoAn 80-gallon electric water heater is energized for the first time. Approximately how many hours would it take to raise the water temperature 80F (26.67C) (from 40F to 120F [4.44C to 48.89C])? The water heater has a 3000-watt heating element.Create a schematic diagram for each electrical device and label its electrical parts. 1. Garment steamer 2. Oven toaster 3. Flat iron (for clothes)
