Assuming the cost of energy from the electric company is $0.135/kWh, compute the cost per day...
Assuming the cost of energy from the electric company is
$0.135/kWh, compute the cost per day of operating a lamp that draws
a current of 1.55 A from a 110-V line.
$...... /day
Homework Answers
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Assuming the cost of energy from the electric company is
$0.135/kWh, compute the cost per day...
The average US citizen consumes 12000 kWh of electric energy per year an ‘ end use’...
The average US citizen consumes 12000 kWh of electric energy per year an ‘ end use’ number and does not include the energy lost in converting other energy sources, e.g. fossil fuels to electricity. Note also that a kWh (kilowatt hour) is a unit of energy (not power) but a ‘kWh per year’ is a unit of power. The average electric bill indicates that a consumer pays about $0.12 per kWh of electric energy. Your Uncle Joe wants to get...
PartA A refrigerator draws 3.9 A of current while operating on a 120 V power line....
PartA A refrigerator draws 3.9 A of current while operating on a 120 V power line. If the refrigerator runs 40% of the time and electric power costs $0.12 per kWh, how much does it cost to run this refrigerator for a 31-day month? Express your answer using two significant figures. cost- Prevlous Answers Request Answe Submit X Incorrect; Try Again; One attempt remaining
A person consumes about 2600 Cal a day. 1 Cal = 4186 J, and 1 kWh...
A person consumes about 2600 Cal a day. 1 Cal = 4186 J, and 1 kWh = 860 Cal. A)What is this energy in joules? B)What is this energy in kilowatt-hours? C)If a power company charges about 13 ¢ per kilowatt-hour, how much would this energy cost per day if the person bought it from the power company?
The electric company charges according to the following rate schedule: 9 cents per kilowatt-hour (kwh) for...
The electric company charges according to the following rate schedule: 9 cents per kilowatt-hour (kwh) for the first 300 kwh 8 cents per kwh for the next 300 kwh (up to 600 kwh) 6 cents per kwh for the next 400 kwh (up to 1000 kwh) 5 cents per kwh for all electricity used over 1000 kwh Write a program that would repeatedly read in a customer number (an integer) and the usage for that customer in kwh (an integer)....
A person consumes about 2300 Cal a day. 1 Cal = 4186 J, and 1 kWh...
A person consumes about 2300 Cal a day. 1 Cal = 4186 J, and 1 kWh = 860 Cal. Part A What is this energy in joules? Express your answer using two significant figures. Q Q = nothing J SubmitRequest Answer Part B What is this energy in kilowatt-hours? Express your answer using two significant figures. Q Q = nothing kWh SubmitRequest Answer Part C If a power company charges about 10 ¢ per kilowatt-hour, how much would this energy...
Question 5 (a) A electric power distributor charges residential customers $0.10 per kilowatt-hour (kWh) The company...
Question 5 (a) A electric power distributor charges residential customers $0.10 per kilowatt-hour (kWh) The company advertises that "green power" is available in 150 kWh blocks for an additional $4 per month per block. (i) A customer uses an average of 300k Wh per month and commits to one monthly 150k Wh (3 marks) (4 marks) (4 marks) block of green power, what is the annual power bill? (ii) What is the average cost per kWh using green power during...
25 pts Household Energy Consumption and Electric Bill How Energy Is Used in Homes (2009) In...
25 pts Household Energy Consumption and Electric Bill How Energy Is Used in Homes (2009) In 2009-2017, the average annual electricity consumption for a U.S. residential utility customer was 10.766 kilowatthours (kWh), an average of 897 kWh per month Req. For the month of June (30 days with 24hr/day) Determine i) the total hours i) Kilowatts/month of June. il) Electric bill based on a charge of $0.085/kwh(-0.079kwh electricity +0.06 transmission). $ iv) Assuming the home has an electric water heater,...
Terry owns an electric vehicle that uses a 273 V DC electric motor. When Terry drives...
Terry owns an electric vehicle that uses a 273 V DC electric motor. When Terry drives his vehicle on a 3.4 hour trip, the power used by the motor is a constant 16.7 kW. If the power company charges Terry $0.12 per kWh, what is his total electric energy cost for the trip? During the trip, what is the current used by the engine?
22 marks Question 2: (a) Photovoltaic system installed to supply 24 kWh, of energy per day to a DC lighting system...
22 marks Question 2: (a) Photovoltaic system installed to supply 24 kWh, of energy per day to a DC lighting system in Şohar University.-The peak sun hours in Oman.are 6 h and the expected Project Life (PL) is 24 years. The system is designed to have the components and rating is as shown in Table Q2a. Table Q2a also shows the actual costs, quantities and life periods of the various components that are considered for Life Cycle Cost (LCC) calculations....
An electric waster is used to clean the siding of a house. Water enters the washer...
An electric waster is used to clean the siding of a house. Water enters the washer at a temperature of 20 degrees C, 100 kPa and a velocity of 0.2 m/s. Water exits at a velocity of 20 m/s at an average elevation of 5 m. Assuming no significant change in temperature and pressure. Under the steady-state operating condition, the amount of heat transfer rate from the washer to the surroundings is 10 % of the electric energy acquired. The...
PartA A refrigerator draws 3.9 A of current while operating on a 120 V power line. If the refrigerator runs 40% of the time and electric power costs $0.12 per kWh, how much does it cost to run this refrigerator for a 31-day month? Express your answer using two significant figures. cost- Prevlous Answers Request Answe Submit X Incorrect; Try Again; One attempt remaining
Question 5 (a) A electric power distributor charges residential customers $0.10 per kilowatt-hour (kWh) The company advertises that "green power" is available in 150 kWh blocks for an additional $4 per month per block. (i) A customer uses an average of 300k Wh per month and commits to one monthly 150k Wh (3 marks) (4 marks) (4 marks) block of green power, what is the annual power bill? (ii) What is the average cost per kWh using green power during...
25 pts Household Energy Consumption and Electric Bill How Energy Is Used in Homes (2009) In 2009-2017, the average annual electricity consumption for a U.S. residential utility customer was 10.766 kilowatthours (kWh), an average of 897 kWh per month Req. For the month of June (30 days with 24hr/day) Determine i) the total hours i) Kilowatts/month of June. il) Electric bill based on a charge of $0.085/kwh(-0.079kwh electricity +0.06 transmission). $ iv) Assuming the home has an electric water heater,...
22 marks Question 2: (a) Photovoltaic system installed to supply 24 kWh, of energy per day to a DC lighting system in Şohar University.-The peak sun hours in Oman.are 6 h and the expected Project Life (PL) is 24 years. The system is designed to have the components and rating is as shown in Table Q2a. Table Q2a also shows the actual costs, quantities and life periods of the various components that are considered for Life Cycle Cost (LCC) calculations....
An electric waster is used to clean the siding of a house. Water enters the washer at a temperature of 20 degrees C, 100 kPa and a velocity of 0.2 m/s. Water exits at a velocity of 20 m/s at an average elevation of 5 m. Assuming no significant change in temperature and pressure. Under the steady-state operating condition, the amount of heat transfer rate from the washer to the surroundings is 10 % of the electric energy acquired. The...
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