Which costs more, running a 2,000-W hair dryer for 3 min or leaving a 40-W lamp on overnight (10 h)?

Q: A water jet consumes 450 W for 24 hours a day. What is the energy cost savings for this period if…

A:

Q: Every day a certain household uses a 3,3 kW electric stove for 72 minutes, six 6 hours each and…

A: Every day a certain household uses a 3.3 KW electric stove for 72 minutes,  six 100 W light bulbs…

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: You have a 1300 W toaster. How much electrical energy in Joules is needed to make a slice of toast?…

A: The objective of the question is to calculate the electrical energy consumed by a toaster in Joules…

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…

Q: 37. Three identical light bulbs are attached to a battery as shown. Compared to when the switch is…

A: Given Three identical bulbs are connected as shown in the figure.we have to find by what factor the…

Q: A stationery shop use the following electric appliances: () Three Air Conditioner of rating 2300 W…

A: In general, a single unit of electricity is considered as equal to 1 kilowatt-hour. The number of…

Q: Your roommate leaves a 120 W fan running in your apartment. Over the course of an hour, how much…

A:

Q: Given Info:   Coffee pot is plugged into 120 V wall socket and draws 3.83A. Takes 460W to run. The…

A: The power needed for the coffee pot is

Q: The internal energy of the water in a container is increased by 440 kJ by means of an electric…

A:

Q: How many kW.h of energy will a 400 W television set use in one month, if it is turned on for an…

A:

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: 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.

Q: An electric fan motor draws 10 C of charge in 2 seconds from a 220 V source. What is the power…

A: Given in question - Charge(Q) = 10 C                                   Time(t) = 2 seconds…

Q: Hot Water Heater Due this Friday, Nov 18 at 11:59 pm (EST) A family comes home from a long vacation…

A:

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: 49.) When you use electrical appliances you are using electrical energy based on the amount of the…

A: It is given that,

Q: A Heater has a wattage rating of 1500W and has been in operation for 2 hours. The Energy Company…

A: 6. H1. The energy consumed in kWh can be calculated as

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: Electric Power Directions: Answer the following problem, write your answer with complete solution.…

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Q: The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value.…

A: Electricity cost  = $0.120 /kWh

Q: An 11.6 W energy efficient fluorescent light bulb is designed to produce the same illumination as a…

A: The energy is a scalar quantity , which represents the ability to do a certain work or process . The…

Q: 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…

A: Power is the rate of work done. Power = work done / time P = W/t =   W - work done t - time in…

Q: A solar panel of length L and width W produces 28.4 kWh in a day. Under the same conditions (i.e.…

A:

Q: A stationery shop use the following electric appliances: (i) Four Air Conditioner of rating 1900 W…

A:

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…

A:

Q: A refrigerator using 1028 W runs one-third of the time. How much does the electricity cost to run…

A:

Q: A clothes dryer uses 3,000 watts when the motor is running. A newer model uses 400 watts when the…

A: Given The power of the old cloth dryer is Po=3000 W=3000×10-3 =3 kW. The power of the new model of…

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: A particular household uses a 1.9 kW heater 1.8 h/day ("on" time), four 100 W lightbulbs 6.0 h/day,…

A: Heater power= 1.9 kw= 1900 wTime = 1.8 h/d4 Bulbs power= 4*100= 400 wTime =6 h/dElectric stove…

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 hair dryer is rated at 1850 W. Assuming there are 30 days in a month, what is the monthly cost of…

A: Given data:  Power (P) = 1850 W = 1.850 kW Daily uses = 12 minutes = 0.2 hours Number of days in a…

Q: A house has 3 tubelights, 2 fans and a television. Each tubelight draws 40 W. The fan draws 80 W and…

A:

Q: A stationery shop use the following electric appliances: (i) Three Air Conditioner of rating 2200 w…

A:

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.