Q: How much current would a 10.4-Ω bread toaster draw when connected to a 220-V outlet?
A: Given data: Resistance of the bread toaster R =10.4Ω Voltage V=220V
Q: On a particular day the following appliances are used for the times indicated: a 1600-W coffee…
A: Given: The power of coffee maker is 1600 W. The power of microwave oven is 1100 W. The duration of…
Q: How much electrical energy in a second is consumed by a bulb that ha a power rating of 50 watts?…
A: The power rating of a bulb is given by P=50 watts
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A:
Q: If electricity costs 10.0 cents per kW·h, how much does it cost to operate the device for 9.1 hours?…
A: Given: Cost of electricity is 10.0 cents for 1 kW.h. The device is operated for 9.1 hours. If you…
Q: An electric clothes dryer is rated at 5,400 W. How much energy does it use in 25 min? kWh
A:
Q: A furnace for an electric heating system is rated at 121 amperes and 27,500watts. What is the…
A: Given: The current is 121 A. The power is 27500 W.
Q: A typical incandescent reading lamp runs at 60W. If it is left on constantly, a) how much energy…
A: Given data: Power (P) = 60 W = 0.060 kW Energy charges = 12.5 cents per kWh
Q: There are approximately 103 million TVs in the United States. Each uses, on average, 76 W of power…
A:
Q: A 22-ohm resistor is in series with a 12-V motor that is drawing 150 Ampare of current. How much is…
A: Solution: Given that R =22 ohm voltage of motor = 12 V I = 150 Amp
Q: How much power does a standard wall outlet produce? Current is 5 amps, and voltage 120 volts?
A:
Q: lee watches tv for 2 hours per day. During that time, the TV consumes 200 watts per hour.…
A: Given, TV consumes 200 watts in 1 hour Lee watches tv for 2 hours 1 kilo watt hour energy costs = 18…
Q: The bill for running 13 electric heaters rated at 1500 watts each is $17.98. If the electric utility…
A: Answer Given Number of electric heaters n = 13 Power of each electric heater P = 1500 watts Total…
Q: How much energy is being used by a transmitting station drawing 40-A from a 440-V power line in 2…
A: Given : I = 40 A V = 440 V t = 2 hours = 2(60) = 120 seconds
Q: There are approximately 103 million TVs in the United States. Each uses, on average, 71 W of power…
A: Given: The number of TVs is 103 million. The average power used by each TV is 71 W. The number of…
Q: How much electric energy is delivered to a 60 W lightbulb if the bulb is left on for 2.5 hours?
A: Write the given values with the suitable variables. P=60 Wt=2.5 hr=2.5×3600 s=9000 s Here, P is the…
Q: An electric water heater consumes 6.63 kW for 2.35 h per day. What is the cost (in dollars per year)…
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Q: for an electric rate of 8.9071/kwh, what does it cost to live a 60 -W light bulb on for 8hr
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Q: How much voltage is for a 36 Ohms resistance that dissipates 700 Watts?
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Q: How many kilowatts of power are delivered to a circuit by a 240V generator that supplies 20A to the…
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Q: What is the cost of operating a 54.64-W light for a year if the cost of electricity is $0.2 kWper hr…
A: Power (P) = 54.64 Watt= 0.05464 kW cost = $0.2 kW per hr time (t) = 1 year
Q: An electric clothes dryer is rated at 2,300 W. How much energy does it use in 35 min? kWh
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Q: A 1200W microwave oven transforms 1.8 x 10^5 J of energy while reheating some food. Calulate how…
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Q: What is the current produced by a toaster consuming a power of 600W and has a resistance of 43O?
A: Given that Power Consumed by toaster is P = 600 W Resistance of toaster is R = 43 ohm Now relation…
Q: What is the electrical energy consumption of a 70-watt TV that is used for 110 hours?
A: What is the electrical energy consumption of a 70-watt TV that is used for 110 hours?
Q: If an appliance has a current of 2.5 amperes and will be used for 8 hours. What is the battery…
A: current = i = 2.5 amperes time = t = 8 hours capacity of battery = ?
Q: Your family decides to limit TV watching to 17 hours every week. If the power rating on your TV is…
A: Given data: Number of hours uses in a week (t) = 17 h Power (P) = 394 W = 0.394 kW Electricity cost…
Q: Maria's torch uses 3 dry cells. how many volts does it need to operate?
A: Current is dependent on voltage between 2 terminals. This is called Ohm's law. More is the potential…
Q: A heating element in a stove is designed to receive 3,345 W when connected to 240 V. Assumming the…
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Q: What current will be taken by a 950 W appliance if the supply voltage is 260V ?
A: Given data : Voltage = V Power = P To find : Current
Q: The choices was 4384hz 4375hz 5069hz 4922hz
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Q: If the unit cost of electricity in Luzon is PhP 8.9951 per kWh, what is the total cost (capital plus…
A: Given data: Cost of electricity = PhP 8.9951 per kWh Power (P) = 28 W Time (t) = 1000 h Capital cost…
Q: Suppose you use 57 kWh (kilowatt hours) of electricity at $0.35 per kWH, 91 kWh at $0.26 per kWh,…
A: We use 57 kWh of electricity at 0.35$ per kWh So cost of 57 kWh of electricity is 57×0.35$=19.95$ We…
Q: A person used his 1500 W air-conditioning unit for 5 h every day during the month of June. How much…
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Q: Dominic leaves a lamp on that uses 3 40W light bulbs. If it stayed on ALL DAY for the entire month…
A: Given data Power of light bulb is ∆P=340 W Cost is $0.141 per kWh Find the power bill.
Q: How many hours will it take for a 500-W electric drill to work for 100 kWh?
A:
Q: An electric clothes dryer is rated at 3,400 W. How much energy does it use in 30 min?
A: power of electric cloth dryer (P) = 3400 W time (t) = 30 min
Q: The cost of electricity in Los Angeles is 5 cents per 1,000,000 joules. Suppose a small 2000-watt…
A: Given data: Cost of electricity = 5 cents per 1,000,000 J Power (P) = 2000 W Time (t) = 3 hours…
Q: A microwave oven has a power requirement of 1,243 W. A frozen dinner requires 5.6 min to heat on…
A: The electrical energy used is given by, E=Pt Here, P is the power of the oven and t is the time for…
Q: What is the yearly cost of operating a 100-W television for 2 hours per day, assuming the cost of…
A: Given data: Power (P) = 100 W Daily uses = 2 hours per days Cost of electricity = Php 11.00 per kWh…
Q: What is the efficiency of an electric motor that produces 1/3 horsepower (about 250 W) of useful…
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Q: A television of 100 W is used for 2 h, then what is the value of unit of expense of electricity?
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Q: Calculate the cost (in cents) of using a 200-watt television for 30 days if turned on 2 hours per…
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Q: An Electric Company has announced that the electricity rate is now at ₱10.183 per kWh. If a certain…
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Q: Lee watches TV for 2 hours per day. During that time, the TV consumes 150 watts per hour.…
A:
Q: How much current does a 1500 Watt heater draw if supplied with a 120 Volt source?
A: Given Data: Power, P = 1500 W Voltage, V = 120 V Solution: Current, I = P/V = 1500 / 120 = 12.5 A
Q: Lee watches TV for 4 hours per day. During that time, the TV consumes 200 watts per hour.…
A: Given: The TV takes the time is 4 hours per day. The cost of electricity is 15 cents/kW.h. The total…
How much does it cost to operate a 25-WW porch light for 24 hh if electric energy costs 8¢/kWhkWh.
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- The cost of electricity in Los Angeles is 5 cents per 1,000,000 joules. Suppose a small 2000-watt air conditioning unit is operated continuously for 3 hours. What is the cost (in dollars) of the total energy consumed?The people who live in suburbs use simultaneously: 2Hp aircon for 3 hrs. 900 watts toaster for 9 mins., a 1.50kW heater for 8 hrs., a 3.4kW broiler for 20 mins. a four 100 watts lamps for 5 hrs. If the total cost she has to pay is $2.50, What is the unit cost per Kw-hr?A light bulb uses up a power of 2.6 kW/hr. If the rate is Php153.42 per 1 kW/hr, and the light was on for 24 hours, a. How much kilowatt hour was consumed? b.How much was the bill after 24 hours?
- A 400-W computer (including the monitor) is turned on for 8.0hours per day. If eletricity costs R1.60per kWh, how muh does it cost to run the computer annually for a typial 365-day year?A compact fluorescent lamp (CFL) uses less energy than its equivalent incandescent bulb. How much will a person save if he/she uses a 20 W CFL instead of a 100 W incandescent lamp for 6 h in 30 days? Electricity is priced at ₱ 8.17/kW.h.A typical incandescent reading lamp runs at 60W. If it is lefton constantly, how much energy (J) is consumed per day,and what is the weekly cost if energy is charged at a rate of12.5 cents per kilowatthour?
- The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value. At this unit price, calculate the cost of the following. (a) Leaving a 40.0-W porch light on for 2 weeks while you are on vacation. $ 1.613 (b) Making a piece of dark toast in 3.00 min with a 980-W toaster. (Give your answer to at least three decimal places.) 5.880e-3 Your response is off by a multiple of ten.¢ (c) Drying a load of clothes in 40.0 min in a 4,800 W dryer. (Give your answer to at least one decimal place.) 0.384 Your response is off by a multiple of ten.¢ Need Help? Read ItA certain house uses an average power of 485 Watts all day, everyday, for a 31 day month. If the energy costs are $0.21 per KW-hour, what is the house’s energy bill for this month? (Your answer is in dollars, so put $ for the units. Also, you'll round your final answer to the nearest cent.)How much energy is consumed by a 1.1 kW hair dryer used for 12 min? How much energy is consumed by a 12 W night light left on for 21 hr?
- A hair dryer is rated at 1850 W. Assuming there are 30 days in a month, what is the monthly cost of using the hair dryer for an average of 12 minutes every day if you are charged 20 cents for every kW-h? $ 222A typical cost for electrical power is $0.120 per kilowatthour. Some people leave their porch light on all the time. What isthe yearly cost to keep a 75 W bulb burning day and night?How much does it cost (in ₱) to operate a 670-W split-type inverter air conditioner for 8 in 30 days, if the energy costs ₱9.0/kWh?