The cost of electricity in Saskatoon is currently about 16.35 cents/kWh (including carbon tax). At this unit price, calculate the cost of the following. (a) Leaving a 80.0-W porch light on for 2 weeks while you are on vacation. (Give your answer in dollars.) $  (b) Making a piece of dark toast in 3.00 min with a 920.-W toaster. (Give your answer in cents to at least three decimal places.)  ¢ (c) Drying a load of clothes in 40.0 min in a 5,900. W dryer. (Give your answer in cents to at least one decimal place.)  ¢

Q: A 400-W computer (including the monitor) is turned on for 8.0 hours per day. If electricity costs…

A: Given  Power p= 400 W  Time t = 8 h  electricity costs 10¢ per kWh,

Q: A small vegetable shop use the following electric appliances: (1) Two Air Conditioner of rating 1500…

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: parent has discovered that you have accidently left the bathroom light on for a wnole month. By…

A: The electrical energy is given by  E = P x t  where, P is the power and t is the time.

Q: A small vegetable shop use the following clectric appliances: (1) Two Air Conditioner of rating 1500…

A: Given that,    Two air conditioner rating 1500 W  (P1)=2× 1500 W = 3000 W = 3KW For time ( t1) 10…

Q: The cost of electricity in Saskatoon is currently about 16.35 cents/kWh (including carbon tax). At…

A: Given data: Cost of electricity = 16.35 cents/kWh Power (P) = 80.0 W Time (t) = 2 weeks

Q: A typical candy bar contains approximately 250kcal. How long would this power a 60 W lightbulb?

A: Convert kilo calorie to joule. E=250 kcal4184 J1 kcal=1.046×106 J The relation between power and…

Q: The power consumed by a refrigerator is 450 W. This refrigerator works for a total of 6 hours every…

A: Given that power consumed by refrigerator and refrigerator work a total of 6 hours in one day and…

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

A:

Q: A typical incandescent reading lamp runs at 60W. If it is left on constantly, how much energy (J) is…

A:

Q: A fan in an air conditioning unit rated at 250 WCome on for an average of 5.0 min at A time, a…

A: Power of fan = P = 250 W Average time fan is on at a time = t=5 min = 300 sec Number of times a day…

Q: Which costs more, running a 1,200-W hair dryer for 5 minutes or leaving a 60-W lamp on overnight?

A: Write the expression for energy consumed by each object .

Q: A 100 W electric bulb is used for 10 hours a day. How many units of energy are consumed in 30 days?

A: The total power consumed by a bulb,

Q: A standard computer has a power supply of 550 W, and many people just leave their computer on all…

A:

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

A:

Q: A refrigerator using 1030 W runs two-thirds of the time. How much does the electricity cost to run…

A: A refrigerator using 1030 W runs two-thirds of the time. How much does the electricity cost to run…

Q: A customer with a prepaid meter buys 180 kW.h for R 261(including VAT) at the shop Calculate the…

A: The cost of 180kw.h electricity is, 261 rupees power of the television is (p)=120w we know,…

Q: A refrigerator using 1020 W runs one-third of the time. How much does the electricity cost to run…

A: The total time run by refrigerator ist=1330 days24 h=240 h

Q: A household use the following electric appliances: (1) A Refrigerator of rating 150 W for twenty…

A: Electrical energy = power x time We have the cost per electrical energy is 10 Bz/kWh. So, we are to…

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

A:

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

A: Given:Cost of electricity = $0.120 per kWh

Q: The cost to operate a clothes dryer for a year is $80.25. If the rate for electrical energy is…

A:

Q: A microwave oven has a power requirement of 1,243 W. A frozen dinner requires 5.6 min to heat on…

A: The energy consumed by the oven can be obtained as E=Pt=1243W×1kW1000W5.6min×1h60min=0.116kWh

Q: Given: power needed to run the TV: 500W What is the cost of running the T.v if we binge watch 5…

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Q: The cost to operate a clothes dryer for a year is $80.25. If the rate for electrical energy is…

A:

Q: In a sunnier location than Eugene, the sun shines for an average of 2000 hours per year. A home…

A:

Q: A Toshiba T.V. set is rated at 1500 W. How much is the costs of watching a football match which…

A: The power rating of the Toshiba T.V. set is 1500 W which means that the TV consumes 1500 joules of…

Q: how much does it cost to run a 1500 W hair dryer for 10 minutes?

A: Given, power (P) =1500W = 1.5 kW            time (t) = 10 minutes = 10/60 hr. =1/6 hr.…

Q: A. At 7.15 cents per kilowatt-hour, what does it cost to operate a 9.00 hp motor for 10.0 he? B. At…

A: Total energy used by the motor will be, Emotor=9.0 hp10.00 hr           =9×0.7457 kW10.00 hr…

Q: A house use the following electric appliances: ) Four Air Conditioner of rating 2000 W for ten hours…

A:

Q: A water jet consumes 3650W for 126 hours a week What is the energy consumed (kWh) for a one-year…

A: Given,  The circulating pump consumes 3650W per hour. If it is on for a week i.e. 126 hrs then,…

Q: If you have an average of 6.5 hours of online class per day for 204 days of school per year, how…

A: Given: The power consumed by the laptop is 90 W. The time is 6.5 hr for 204 days. The rate of cost…

Q: Cost of Electricity A refrigerator is an appliance that is left running all the time. In New…

A:

Q: A small vegetable shop use the following electric appliances: ) Two Air Conditioner of rating 1800 W…

A: Given that the two air conditioner are of 1800 W and they work for 10 hours each day  Therefore…

Q: The approximate number of Fridges in Italy is 90 thousand. If each is on standby for about 2 hours…

A: Number of fridges = 90 thousand standby hours each day = 2 hours Power consumed by fridge while on…

Q: The energy content of a fully charged 12 V storage battery of capacity 50 A-h is О а. 36 J b. 0.60kJ…

A: Energy content of a storage battery= E= Voltage×charge passed voltage= 12 V charge passed= 50 A h =…

Q: On a Saturday afternoon, a man was thankful he wasn’t in his car when the 20 000 mAh power bank he…

A: Introduction: Power bank is an external storage device which can supply rated value of current and…

Q: Given 150 kWh of electricity and assuming 30% losses, how much work, in joules, could be done?

A:

Q: If a watt is a joule/sec, and an American family uses 1500 kilowatt hours per month. What are they…

A: they are buying energy in KILOJOULES (KJ) EXPLANATION :- Since, 1 watt = 1 joule / 1 second so, 1…

Q: How long must a 12 W compact fluorescent bulb be turned on to convert 18 kJ of electrical enrgy into…

A:

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

A: E=Pt=2000 W3 min60 s1 min=3.60×105 J

Q: An electric water heater consumes 5.00 kW for 2.00 h per day. What is the cost of running it for one…

A: Consumed electric energy expression will be, E=P×Running×Total timeThe cost of electriciy=Total…

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.