Your water heater is set for use during Time of Day "off peak" hours. If it uses 1500VA and operates for 3 hours, giving you a full tank for the day, how much does it cost per month (30 days) at $.033/KWH

Q: A 1110 W radiant heater is constructed to operate at 115 V. (a) What is the current in the heater…

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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: On average, an electric water heater operates for 2.00 h each day. A water heater typically draws…

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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 much electrical energy (in kilowatt hours) would a 45.0 W light bulb use in 60.0 days if left on…

A: Given that                     The power of the bulb is (P) = 45W                      Time = 60days…

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: The electric oven in your kitchen is plugged into a 240.0V out and it draws a 19.5 A current. If you…

A: Potential difference = 240 V Current = 19.5 A Time = 30 mins = 1800 seconds

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: C. A 5.5-kW water heater operates at 240 V. i. Should the heater circuit have a 20A or a 30A circuit…

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

A: Given, Electricity cost = 0.12$/kWh And power P=Et So, E=P.t a) Power = 40W total time, t =7days=…

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

A: Solution: Given that working hours = 11 hours working days = 20 days number of lamps = 8

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: A light bulb has resistance of R = 150 N and has a current of /= 1.1 A passing through it. Express…

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Q: A 50.7 ohm resistor is put into a circuit with a 16 volt battery. What is the power dissipated (in…

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Q: The big mall near Sally and Amy's city has extended their operating hours to accommodate the huge…

A: power of each headlight =43.0 W car battery V=12.0 volts rated Q=92.0 A.h

Q: 5.5-kW water heater operates at 240V. i.Should the heater circuit have a 20A or a 30A circuit…

A: i. write the expression for power.

Q: A 1160 W radiant heater is constructed to operate at 115 V. (a) What is the current in the heater…

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Q: A 1450 W radiant heater is constructed to operate at 115 V. (a) What is the current in the heater…

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Q: An older electric water heater uses 10.0 of power while it's on, but it's only on for 2 hours every…

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Q: An electric motor raises a 41.6-pound-force platform loaded with 7.55-pound-force bags of calcium…

A: Given That: Mass of load raises by motor, m=46+7.55=49.15 lb≈22.3 kg The Level of Height, h=15…

Q: of decorative outdoor lights is left on for 12.0 h. The lights draw a current of 2.00 A, and run on…

A: Given  Time t  = 12 h = 12×60 × 60 =  43200 sec  Current I = 2 A  Potential difference V = 120 V

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: 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: A small office building air conditioner operates on 250 V AC and consumes 4.74 kW. What is the cost…

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Q: Consider a series RC circuit as in the figure below for which R = 9.00 MQ, C= 4.00 µF, and = 31.0 V.…

A: Time constantτ is given by:Time constantτ=RCwhere,R is resistance and C is capacitance,charging of…

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

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Q: What is the maximum power consumption of a (9.00x10^0) V portable cassette player that draws a…

A: Given data:  Voltage (V) = 9.00×100  V Maximum current (I) = 3.6000×101 mA Required:  The maximum…

Q: An 11.0-W energy-efficient fluorescent lightbulb is designed to produce the same illumination as a…

A: Here wattage of energy efficient lightbulb is lower than the conventional incandascent lightbulb.…

Q: A utility company charges 8.5 cents/kWh. If a consumer operates a 40-W light bulb continuously for…

A: A utility company charges 8.5 cents/KWh.   if a consumer operates a 40-W bulb continuously  for one…

Q: A 5.5-kW water heater operates at 240 V. Should the heater circuit have a 20A or a 30A circuit…

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Q: A cook plugs a 400 W crockpot and a 1000 w kettle into a 240 V power supply, all operating on…

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Q: An electric heater of resistance 8.0Ω draws 15A from the service mains. What is the power dissipated…

A: P= I2R I=15A R=8 Ω Power dissipated= P=I2R                               P=1800 W…

Q: Cold vaporizers pass a current through water, evaporating it with only a small increase in…

A: (a) Write the formula for the power rating of the device is:

Q: A PHILIPS brand of electric mixer is operating at 175 Watts. How much are you going to pay in 1…

A: Given, Power of electric mixer (P) = 175 W  Electric mixer used  30 min per day for 30 days  Rate/…

Q: An electrical heating coil is immersed in 3.52kg of water at 22C. The coil, which has a resistance…

A: The heat produced by electric resistance is given by = (V2/*R)*t Heat given to te water = m *s*∆T…

Q: A 14 W energy efficient CFL lamp, is designed to produce the same illumination, as a conventional 60…

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Q: A typical cost for electrical power is $0.120 per kilowatthour Suppose your refrigerator uses 400 W…

A: Let the power rating of the refrigerator be P and the cost of the electrical energy per…

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

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Q: water

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