1.How much energy does a 100-W electric bulb consume in two hours?
Q: O. For the circuit shown: Calculate the consumed puwer by R. 100V R, 40 R2 10A 10V
A: In the given circuit we have to determine the consumed power by resistance R2.
Q: 22. Two objects, A and B, are placed in thermal contact. The entropy of object A decreases. What can…
A: 22.As the two objects are in thermat contact therfore their temperatures must be samec. TA=TB…
Q: appliances: (i) Three Air Conditioner of rating 2000 W for ten hours each day (ii) Two Electric…
A: Given that Cost of unit electricity = 20 Bz / kwh electric appliance 3 AC X 2000W X 10 hr = 60…
Q: Part A How many 75-W lightbulbs, connected to 120 V as in the figure, can be used without blowing a…
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Q: A light bulb is rated at 300 W when operated at 120 V. How much charge in C enters (and leaves the…
A: Given: Power rating of bulb, P=300 W Voltage, V=120 V Time, t=1 min=60 s
Q: A 10-Ohm resistor has a constant current of 5.0 A. What is the rate at which the electric energy is…
A: Recall P=i2R Where i is current and R is resistance of the resistor.
Q: Question 7: Certain areas in Arizona, Nevada, California and Texas can have up to 4000 sunny hours a…
A: From the given data we can say Total energy consumption = Average light landing * Sunny hours *…
Q: In a certain city, electricity costs $0.17 per kW h. What is the annual cost for electricity to…
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Q: A compact fluorescent lamp (CFL) uses less energy than its equivalent incandescent bulb. How much…
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Q: Question #18. Calculate the cost of operating this light bulb in 10 seconds. Given 4pesos/kWhr. I…
A: Given: The power of the bulb is 50 W. The time interval is 10 s. The cost rate is 4 pesos/kWhr.
Q: How many kW.h of energy will a 400 W television set use in one month, if it is turned on for an…
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Q: Compare the energy consumption of two commonly used items in the household. Calculate the energy…
A: This problem is from electronics. Let's solve it by the definition of Power. Please have a good look…
Q: What is the useful energy output when a 60 W light bulb is on for 2 hours? Recall, traditional light…
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Q: Hot Water Heater Due this Friday, Nov 18 at 11:59 pm (EST) A family comes home from a long vacation…
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Q: Calculate the cost of leaving 1300 W refrigerator for a year, if the electric company charges you 12…
A: Write the formula for the total amount of power used in a year. Ptotal=watts×hours used per day×days…
Q: A coffee pot heat water with an electrical heater. The coffee pot is plugged into 120v wall socket…
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Q: You pay an electric company an average of 8.7497 dollars for one kW-h used. How much would it cost…
A: Given: cost of 1KWh = 8.7497 dollars power of AC = 650 W runs 10 hours per day for 30 days
Q: A 75 W incandescent bulb and a 15 W compact fluorescent bulb, as shown, each produce 3.0 W of…
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Q: 25.68 Compact Fluorescent Bulbs. Compact fluorescent bulbs are much more efficient at producing…
A: (a) Given,P=100Wlife time =750 hourspriceof bulb=0.75 bulbs are on for =4 hours3 years=3×365×4=4380…
Q: 4. DETAILS MY NOTES ASK YOUR TEACHER What are the expected readings of the following in the figure…
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Q: A solar panel of length L and width W produces 28.4 kWh in a day. Under the same conditions (i.e.…
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Q: A stationery shop use the following electric appliances: (i) Four Air Conditioner of rating 1900 W…
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Q: Compare the energy consumption of two commonly used items in the household. Calculate the energy…
A: Wtoaster = 0.0967 kWh Wlight = 116 kWhExplanation:Approach to solving the question:Detailed…
Q: A small vegetable shop use the following electric appliances: (i) Two Air Conditioner of rating 2200…
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Q: A stationery shop use the following electric appliances: (i) Four Air Conditioner of rating 1900 W…
A: Electrical energy consumed by air-conditioners, for the month-E1=No. of air-conditioner×Rating of…
Q: 10.a. To provide a useful purpose, electrical energy is most often converted to A. heat, chemical…
A: Solution: 10.a electrical energy is most often converted to B. heat, light, or mechanical energy.…
Q: A 1.5 kW kettle is used 5 times a day for five minutes each time. What is the cost of running the…
A: Given Power of kettle P = 1.5 kW Cost of 1 unit electricity is = 5.00/kWh
Q: a CFL or compact flourescent lamp uses less energy that its equivalent incandescent bulb. how much…
A: Electricity can be simply defined as a measure of the flow of electrical current. Electricity is…
Q: Calculate the number of kilowatt-hours (kW-hrs) consumed in a week by two 60-Watt incandescent light…
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Q: 13. An energy-efficient fluorescent lightbulb operating at power P1 = 28 W can produce the same…
A: Given data: Energy-efficient fluorescent lightbulb operating power, P1=28 W Conventional…
Q: Compact fluorescent bulbs aremuch more efficient at producing light than are ordinary…
A: Given: Power consumption of fluorescent, Pf=23.0 W,Power consuption of incandescent, Pi=100 W,Cost…
Q: ne 9-volt battery contains 19.7 thousand joules of energy. A 4-pack of 9-volt batteries cost $10.31…
A: The energy in one battery E =19.7×103 J Total energy of 4 pack 9V battery is 4E The power is 1 Watt…
Q: An electric car is designed to run off a bank of 15-V batteries with total energy storage of 2.1 ×…
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Q: Suppose the cost of an incandescent bulb is 23 cents and that electricity costs 12 cents/kWh.…
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Q: Suppose you leave a 50 W bulb on for a month. Approximately how much will you pay for using that…
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Q: A small wind turbine has 3 blades that are 1m radius each. Take the air density on a typical day to…
A: A turbine is a device that converts fluid rotational energy captured by a rotor system into useful…
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