If an iron takes 660KJ of energy from the mains supply after being left on for 10 minutes, what is the power rating of the iron? a) In Watts b) In kW
Q: A certain brand of hotdog cooker works by applying a potential difference of 144 V across opposite…
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Q: A certain brand of hotdog cooker works by applying a potential difference of 132 V across opposite…
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Q: appliances: (i) Three Air Conditioner of rating 2000 W for ten hours each day (ii) Two Electric…
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A: Given that:- Current, I=12.5 A Potential V=150 V Power is given as: P=VI Equation…
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Q: 5. A person used his 1500 W air-conditioning unit for 6 h every day during the month of July. a. How…
A: Given Power of AC = P = 1500 W Daily used time = t = 6 h Electricity cost = P9.45/kWh We have to…
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Q: A certain brand of hotdog cooker works by applying a potential difference of 137 V across opposite…
A: Given : potential difference = 137 V Current I= 10.9A Energy required to cook 1 hotdog = 61.0…
Q: A certain brand of hotdog cooker works by applying a potential difference of 147 V across opposite…
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Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…
A: Given, P= 30 W V= 120 V t= 2.1min = 2.1*60= 126 sec
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A: Given data: Gain in Heat Energy (ΔE) = 3 J Time interval (Δt) = 30 s Required: The average power…
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Q: A 7.9µF Capacitor with an intial stored energy of 0.585 J is discharged through a 1.28 MN resistor,…
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Q: A water jet consumes 3950W for 126 hours a week What is the energy consumed (kWh) for a one-year…
A: Given Power consumed by water jet =3950 W =3.950 kWh Used for 126 hours a week.
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Q: A 36 Ω component is connected to a 12 V battery. How much energy is expended per second? W
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Q: A certain brand of hotdog cooker works by applying a potential difference of 133 V across opposite…
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Q: A typical cost for electric power is $ 0.135 per kilowatt-hour. (a) Some people leave their porch…
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A: Given values:Power of heater element, P = 2.5 KwInitial length of dryer, Li = 59 cm = 0.59 mFinal…
Q: A wire has a resistance of 3.1 ΩΩ at 30 Co and a resistance of 4.52 ΩΩ at 100 C°. The temperature…
A: Given data: Resistance, R=3.1 Ω at temperature T=300C Resistance, R'=4.52 Ω at temperature T'=1000C
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A: In this question we are given with a number of 16 Ω resistors, each capable of dissipating only 2.0…
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A: Given: cost of 1KWh = 8.7497 dollars power of AC = 650 W runs 10 hours per day for 30 days
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- A certain brand of hotdog cooker works by applying a potential difference of 143 V across opposite ends of a hot dog and allowing it to cook by means of the thermal energy produced. The current is 11.9 A, and the energy required to cook one hot dog is 60.4 kJ. If the rate at which energy is supplied is unchanged, how long will it take to cook three hot dogs simultaneously? Number i UnitsA current of 0.5 A flows through a fluorescent lamp of resistance 300 Q. The power dissipated on the lamp is O a. 150 W O b. 75 W O c. 85 W O d. 70 WReferring to the given figure where V= 6 V, use source transformation to determine the current and power absorbed by the 8-0 resistor. 82 ww ЗА 10Ω The current absorbed by the 8-S resistor is The power absorbed by the 8-N resistor is A. W. ww
- 12.a. For grounded systems, equipment grounding and bonding performance requirements are set forth inwhich article of the National Electrical Code?A. 840.100B. 490.55C. 250.4(A)D. 680.42(B)12.b. A crane is operating in a Class III environment. Which of the following types of grounding systemshould be used?A. The power supply to the crane should be grounded, but the crane should be ungrounded.B. Both the crane and the power supply should be grounded.C. Neither the crane nor the power supply should be grounded.D. The crane should be grounded, but the power supplied to the crane should be ungroundedSelect the correct one.Compare the energy consumption of two commonly used items in the household. Calculate the energy used by a 1.00 kW toaster oven, W toaster, which is used for 5.80 minutes, and then calculate the amount of energy that an 11.0 W compact fluorescent light (CFL) bulb, Wight, uses when left on for 10.50 hours. W toaster = kWh Wlight = kWh
- e-Learning Portal Courses - Reports e-Services Academic Departments ETC - CIMS - A small vegetable shop use the following electric appliances: (i) Two Air Conditioner of rating 2200 W for ten hours each day (ii) Two Electric Freezer of rating 1400W each for 24 hours each day (iii) Ten electric tube lights of rating 35W each for 12 hours each day. Calculate the electricity bill of the vegetable shop for the month of November 2020 if the cost per unit on of electric energy is 10 Bz/ kWh. (i) Electrical Energy(in kWh) consumed by two Air conditioners of rating 2200 W for 10h of each day= (ii) Electrical Energy(in kWh) consumed by two Electric Freezer of rating 1400 W for 24 h of each day= (iii) Electrical Energy(in kWh) consumed by ten Tube light of rating 35 W for 12 h of each day = 10 pe here to search DII F8 F9 F6 F7 F3 F4 F5 F1 F2 $ % & # 立A 1100 W toaster takes one minute to toast a slice of bread. At 9.0 cents/(kW-h), how much does the toast cost? cost: cents Question Credit: OpenStax College PhysicsThe periodic current shown is applied to a 1 kΩ resistor. Calculate the exact value of the average power dissipated in the1 kΩ resistor.
- A certain solar cell type has an output capability of 7.1 A at 0.8 V. A series / parallel solar array has been designed of such cells with 10 parallel strings and each string has 127 cells in series. Calculate Voltage capability of array. Answer:A water jet consumes 3650W for 126 hours a week What is the energy consumed (kWh) for a one-year period? What is the utility energy charge for this period at a rate of $750/kWh? What is the energy cost savings for this period if the water jet is switched off five hours a day? 1year=365.25daysSuppose you leave a 50 W bulb on for a month. Approximately how much will you pay for using that much energy? (Assume that electricity is charged at a rate of $0.10/(kW hour).) A) 3 cents B) 30 cents C) 3 dollars D) 30 dollars E) 300 dollars