Chapter 20: Problem 11: The average television set is said to be on 6 hours a day. a) Calculate the yearly cost of electricity, in billions of dollars, required to operate 100 million TVs, assuming their power consumption averages 125 W and the cost of electricity averages 10.5 cents/kW⋅h.
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Chapter 20: Problem 11: The average television set is said to be on 6 hours a day.
a) Calculate the yearly cost of electricity, in billions of dollars, required to operate 100 million TVs, assuming their power consumption averages 125 W and the cost of electricity averages 10.5 cents/kW⋅h.
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- The average television is said to be on 6 hours per day. Estimate the yearly cost of electricity to operate 100 million TVs, assuming their power consumption averages 150 W and the cost of electricity averages 12.0 cents/kW h .The average television set is said to be on 6 hours a day. a) Calculate the yearly cost (total cost) of electricity, in billions of dollars, required to operate 100 million TVs, assuming their power consumption averages 130 W and the cost of electricity averages 13.5 cents/kW⋅h.A) How many kW of energy does a 650-W toaster use in the morning if it is in operation for a total of 7.0 min ? At a cost of 9.0 cents/kWh, estimate how much this would add to your monthly electric energy bill if you made toast four mornings per week (16 times per month). Express your answer to two significant figures and include the appropriate units.
- A stationery shop use the following electric appliances: (1) Three Air Conditioner of rating 2200 W for ten hours each day (ii) Two Electric water heater of rating 1500W each for 6 hours each day (ii) Twelve electric tube lights of rating 25W each for 12 hours each day. Calculate the electricity bill of the stationery shop for one month (30 days) if the cost per unit of electric energy is 25 Bz/ kWh. (1) Electrical Energy(in kWh) consumed by three Air conditioners of rating 2200 W for 10 h of each day= (i) Electrical Energy(in kWh) consumed by two Electric Heaters of rating 1500 W for 6 h of each day= (ii) Electrical Energy(in kWh) consumed by twelve Tube light of rating 25 W for 12 h of each day = (iv) Total energy(in kWh) consumed in one month = (v) Electricity bill(in riyals) for one month =A house has 3 tubelights, 2 fans and a television. Each tubelight draws 40 W. The fan draws 80 W and the television draws 60 W. On an average, all the tubelights are kept on for five hours, two fans for 12 hours each and the television for five hours a day. Find the cost of electric energy used in 30 days at the rate of Rs. 3.00 per KWH.Fast plz
- A house use the following electric appliances: (i) Four Air Conditioner of rating 4000 W for ten hours each day (ii) Three Electric water heater of rating 3250W each for 4 hours each day (iii) Ten electric tube lights of rating 35VW each for 12 hours each day. Calculate the electricity bill of the house for the month of November 2020 if the cost per unit of electric energy is 10 Bz/ kWh. (i) Electrical Energy(in kWh) consumed by four Air conditioners of rating 4000 W for 10 h of each day= (ii) Electrical Energy(in kWh) consumed by three Water Heaters of rating 3250 W for 4 h of each day = (iii) Electrical Energy(in kWh) consumed by ten Tube light of rating 35 W for 12 h of each day = (iv) Total energy(in kWh) consumed in the month November'2020 = (v) Electricity bill(in riyals) for the month of November'2020 =A stationery shop use the following electric appliances: (i) Three Air Conditioner of rating 2200 w for ten hours each day (ii) Two Electric water heater of rating 2000w each for 6 hours each day (i) Twelve electric tube lights of rating 30W each for 12 hours each day. Calculate the electricity bill of the stationery shop for one month (30 days) if the cost per unit of electric energy is 10 Bz/ kWh. ) Electrical Energy(in kWh) consumed by three Air conditioners of rating 2200 W for 10 h of each day= (i) Electrical Energy(in kWh) consumed by two Electric Heaters of rating 2000 W for 6 h of each day= (iii) Electrical Energy(in kWh) consumed by twelve Tube light of rating 30 W for 12 h of each day = (iv) Total energy(in kWh) consumed in one month = (V) Electricity bill(in riyals) for one month =A house use the following electric appliances: (i) Four Air Conditioner of rating 4000 W for ten hours each day (ii) Three Electric water heater of rating 4250W each for 4 hours each day (ii) Ten electric tube lights of rating 30W each for 12 hours each day. Calculate the electricity bill of the house for one month (30 days) if the cost per unit of electric energy is 10 Bz/ kWh. () Electrical Energy(in kWh) consumed by four Air conditioners of rating 4000 W for 10 h of each day= (i) Electrical Energy(in kWh) consumed by three Water Heaters of rating 4250 W for 4 h of each day = (ii) Electrical Energy(in kWh) consumed by ten Tube light of rating 30 W for 12 h of each day = (iv) Total energy(in kWh) consumed in one month = (v) Electricity bill(in riyals) for one month =
- house use the following electric appliances:(i) Four Air Conditioner of rating 2500 W for ten hours each day(ii) Three Electric water heater of rating 3000W each for 4 hours each day(iii) Ten electric tube lights of rating 35W each for 12 hours each day. Calculate the electricity bill of the house for the month of November 2020 if the cost per unit of electric energy is 20 Bz/ kWh. (i) Electrical Energy(in kWh) consumed by Air conditioners of rating 2500 W for 10 h of each day= Answer for part 1 (ii) Electrical Energy(in kWh) consumed by Water Heater of rating 3000 W for 4 h of each day = Answer for part 2 (iii) Electrical Energy(in kWh) consumed by Tube light of rating 35 W for 12 h of each day = Answer for part 3 (iv) Total energy(in kWh) consumed in the month November'2020 = Answer for part 4 (v) Electricity bill(in riyals) for the month of November'2020 = Answer for part 5Compact fluorescent bulbs aremuch more efficient at producing light than are ordinary incandescentbulbs. They initially cost much more, but they last far longer and usemuch less electricity. According to one study of these bulbs, a compactbulb that produces as much light as a 100 W incandescent bulb usesonly 23 W of power. The compact bulb lasts 10,000 hours, on the average,and costs $11.00, whereas the incandescent bulb costs only $0.75,but lasts just 750 hours. The study assumed that electricity costs $0.080per kilowatt-hour and that the bulbs are on for 4.0 h per day. How much do you save over 3.0 years if you use a compact fluorescent bulb instead of an incandescent bulb?Compact fluorescent bulbs aremuch more efficient at producing light than are ordinary incandescentbulbs. They initially cost much more, but they last far longer and usemuch less electricity. According to one study of these bulbs, a compactbulb that produces as much light as a 100 W incandescent bulb usesonly 23 W of power. The compact bulb lasts 10,000 hours, on the average,and costs $11.00, whereas the incandescent bulb costs only $0.75,but lasts just 750 hours. The study assumed that electricity costs $0.080per kilowatt-hour and that the bulbs are on for 4.0 h per day. What is the total cost (including the price of the bulbs) to run each bulb for 3.0 years?
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