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: What is the electrical energy stored per 1 squared micron of cell membrane at the voltage -70 mV?

A: Area of cell membrane=A=1 micron2=1×10-62 m voltage=V=-70 mV=-70×10-3V

Q: An electric heater is rated 1500 W. How much energy does it use in 10 hours?

A: Given : P = 1500 W = 1.5 kWh T = 10 hours

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

A:

Q: Assume you have one room it has 8 lamps and they are working 11 hours per day. If the unit price is…

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Q: How long in minutes will it take a 1-kW. 230-volt percolator to raise the temperature of 1.8 kg of…

A: Power of percolator: P = 1000 Watts Mass of water: m = 1.8 kg  Initial temperature of water: Ti =…

Q: An electric clothes dryer is rated at 4,000 W. How much energy does it use in 40 min?

A: Given that  An electric clothes dryer is rated at 4,000 W So, power = p = 4000 w Also time = t = 40…

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: A freezer that is never turned off draws an average current of 2.4 A when it is plugged into a 115 V…

A: Electric Power is a rate of absorption of energy in the electrical circuit. Since this energy is…

Q: 7. A 60W light bulb runs for 3 hours, how much electrical energy has it used?

A: Power = P = 60 W time = t = 3 hours = 3 x 3600 = 10800 s energy = E = ?

Q: How much does it cost to run a 1500-W hair dryer for 29 minutes each day for one month (30 days) at…

A: Total Power ( P ) = 1500 W = 1.5 kWatts Time = 29 minutes each day for 30 days Total Minutes of…

Q: A 660-W electric heater is designed to operate from 120-V source. What is the approximate rate of…

A: Given: The power capacity of electric heater p=660W The supply voltage V=120 volt

Q: a batch of parts is plated with copper in an electrolytic bath running at 0.20 V and 12.0 A for…

A: Given: Voltage V=0.2 V Current I=12.0 A Time t=3 hrs Energy cost =5 per KWh   To find:  Total energy…

Q: How much does it cost to run a 1500-W hair dryer for 37 minutes each day for one month (30 days) at…

A:

Q: A small vegetable shop use the following electric appliances: () Two Air Conditioner of rating 1700…

A:

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: Given: Power, P = 5 kW time,t =  2 hours Cost = 12 cents / kWh

Q: Air Conditioner of rating 1500 W for ten hours each day Electric Freezer of rating 1300w each for 24…

A: power = I2 R

Q: An electric heater is rated 1500 W. How much energy does it use in 10 hours?

A: We know thatE=P×tHereE=EnergyP=Powert=Time

Q: A small vegetable shop use the following electric appliances: (1) Two Air Conditioner of rating 2400…

A:

Q: ow much does it cost to run a 1500-W hair dryer for 15 minutes each day for one month (30 days) at a…

A: Given Power of hair dryer is P= 1500 W Time taken is t=30(15 min) =450 min=7.5 hours

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

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Q: How much does it cost (in P) to operate a 670-W split-type inverter air conditioner for 8 in 30…

A: We have-Power, P= 670 Watt=0.67 KWatt.Time, t= 8 h per dayTotal days= 30Hence, time 't'=30×8h= 240 h

Q: At a cost of 9.0 cents/kWh estimate how much this would add to your monthly electric energy bill if…

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Q: During a large power demand, the line voltage is reduced by 5.0%. What is the power output of a…

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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: A 60-W incandescent light bull costs $0.41. An equivalent 18-W compact fluorescent (CFL) bulb costs…

A:

Q: 12.a. For grounded systems, equipment grounding and bonding performance requirements are set forth…

A: 1a) In article 250.4(A) ,equipment grounding and bonding performance requirements for grounded…

Q: A standard flashlight battery can deliver about 4.9 W-h of energy before it runs down. (a) If a…

A: Given : Cost of Battery = 80 cents Energy delivered  per battery(e) = 4.9Wh Energy(W) required to…

Q: A monthly éléčtřić bill iš based or ge. • A set of electronic devices that altogether are rated at…

A:

Q: A small vegetable shop use the following electric appliances: (i) Two Air Conditioner of rating 1700…

A:

Q: (i) Three Air Conditioner of rating 2100 W for ten hours each day (ii) Two Electric water heater of…

A:

Q: Electric energy is to be stored at a station in which 5000 condensers are connected in parallel. The…

A:

Q: 2. A 350 W laptop is used daily for 9 hours in teaching. How many kWh are consumed by the laptop in…

A: Answer:-  Given    Power (P) = 350 W = (350)/(1000) = 0.35 kW     Time taken for 9 hours in 30…

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 water heater requires 1100 W of power. Electricity costs 8 cents per kilowatt hour.…

A: Given Power of an electric heater = P = 1100 W = 1.1 kW Cost of electricity = 8 cents/kWh We have to…

Q: A microwave oven draws 8 A when supplied with 120 V. The microwave is subsequently used for 6…

A: To find the electrical energy used by microwave

Q: To recharge a 12 V battery, a battery charger must move 4 × 105 C of charge from the negative…

A:

Q: How much does it cost to run a 1500-W hair dryer for 41 minutes each day for one month (30 days) at…

A: The expression for the electric power in terms of energy and time is as follows: P=EtE=Pt…

Q: 2.00 N 3.00 N E1.00 N 18.0 V 4.00 Q 4. The Power dissipated in the 20 is = W & Power dissipated 40…

A:

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

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.