A typical cost for electrical power is $0.120 per kilowatthour Suppose your refrigerator uses 400 W of power when it’s running, and it runs 8 hours a day. What is the yearly cost of operating your refrigerator?
Q: Your old car battery with an emf of 7.3 V and internal resistance of 0.5 ohm dies out and won’t let…
A:
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: How much total energy is dissipated in 1 hour, when you attach 2, 6 Ω light bulbs in series with…
A: GIVEN- Resistance (R1) = 2 Ω Resistance (R2) = 6 Ω Battery (V) = 12 V Time (t) = 1 hr = 3600 sec.
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: There are approximately 103 million TVs in the United States. Each uses, on average, 76 W of power…
A:
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: A cook plugs a 400 W crockpot and a 1000 W kettle into a 240 V power supply, all operating on…
A:
Q: An electric heater is connected across a 220 V emf source. The heater operates for 10 hours and…
A: Given : V = 220 V t = 10 hours E = 11 kWh = 11 x 103 Wh
Q: A charge of 5 nC jumps through a gap in 40pS duration. What amount of current flowed through the gap…
A: Given Amount of charge is Q=5 nC Time taken is t=40*10^-3 ns
Q: Consider that a heart of defibrillator uses 404 j of energy in 11 ms What is the average power…
A:
Q: A 660 W electric heater is designed to operate from a 120 V source. If the source voltage drops to…
A: Given that,The power of heater : P1 = 660 (W)The voltage of heater : V1 = 120 (V)The voltage drop :…
Q: The big mal near Sally and Amy's city has extended their operating hoursto accommodate the huge…
A: Let the time in which battery discharges completely be t. the power consumed by the bulb of power P…
Q: One heater uses 340 W of power when connected by itself to a battery. Another heater uses 210 W of…
A: Given:- The first heater which is connected to the battery of V voltage uses a power P1 = 340W The…
Q: A 19 Ω resistor is connected to a battery. The figure below shows the increase of thermal energy…
A: Given that, The resistance of the resistor, R= 19Ω Time, t=4s The increase in thermal energy is 2.5…
Q: What power is dissipated in a circuit through which 0.12 A flows across a potential drop of 3.0 V?…
A: Given that,Current : i = 0.12 (A)Potential drop : V = 3 (V)Here we need to find the power :Now,As we…
Q: A 660 W electric heater is designed to operate from a 120 V source. If the source voltage drops to…
A: Given that: The power of the heater is P1=660 W. The voltage of the heater is V1=120 V. The drop in…
Q: Suppose you have a 2000 Watt water heater that is on for a total of 150 hours a month. How much will…
A: Total energy consumed = 2000×150 Watt-hrs=2×150 kW-hrs=300 kW-hrs
Q: An older electric water heater uses 10.0 of power while it's on, but it's only on for 2 hours every…
A:
Q: A 660 W electric heater is designed to operate from a 120 V source. If the source voltage drops to…
A: We have-Power of heater, P1= 660 WattVoltage of heater, V1= 120 VoltDrop-in voltage, V2= 80 VoltWe…
Q: A 19 Ω resistor is connected to a battery. The figure below shows the increase of thermal energy…
A: Given: The resistance of resistor is 19Ω Time is 4 seconds Increase in thermal energy is 2.5 mJ
Q: Energy c o s t s $ 0.053/kWAh. A toaster, rated at1.0 kWAh, is used for a total of 30 minutes per…
A: The kilowatt-hour (kWh) is the unit of energy equivalent to 1 kilowatt (kW) of power expended for 1…
Q: A flashlight, which uses a 3.0 V battery, is turned on for 2.0 minutes. If the current in the…
A: Given that-Battery Voltage, V= 3.0 VoltTime, t= 2 minutes= 120 secondsCurrent, I= 100 mA=0.100 A
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: Q3: A static electrical device has 2000 turns uses 4000 mA from the supply connected to a laptop…
A: Given: turns=2000 supply current (Is) = 4 A power =1000W supply voltage (Vs)=20 V
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: What power is dissipated in a circuit through which 0.12 A flows across a potential drop of 3.0 V?…
A: Given that:- A circuit with a current flowing through it i=0.12A And the potential drop is V=3.0 V
Q: A 5.5-kW water heater operates at 240 V. Should the heater circuit have a 20A or a 30A circuit…
A:
Q: The people who live in suburbs use simultaneously: 2Hp aircon for 3 hrs. 900 watts toaster for 9…
A:
Q: One heater uses 330 W of power when connected by itself to a battery. Another heater uses 350 W of…
A: Given:- The first heater which is connected to the battery of V voltage uses a power P1 = 330 W The…
Q: A 660 W electric heater is designed to operate from a 120 V source. If the source voltage drops to…
A: The maximum power that can be dissipated by the electric heater, P=660 W The heater is designed to…
Q: Four resistance are connected across an 24-V DC battery as shown in the figure. The current through…
A:
Q: A 1750 W radiant heater is constructed to operate at 120 V. What is the current in the heater when…
A:
Q: One heater uses 370 W of power when connected by itself to a battery. Another heater uses 260 W of…
A: Given:- The first heater which is connected to the battery of V voltage uses a power P1 = 370 W The…
Q: What is the maximum voltage, in V, that a 30 Ohm light bulb can handle if it is rated for 60 W?
A: Resistance = 30 ohm Power rating of light bulb = 60 Watt Formula used , Power = Voltage2/R
Q: Suppose you leave a 50 W bulb on for a month. Approximately how much will you pay for using that…
A:
Q: A typical cost for electrical power is $0.120 per kilowatthour. Some people leave their porch light…
A: Given data P=75 WC=$ 0.12 /kWh
Q: The capacitor is initially uncharged when the switch is closed at t=0. When t equals 10s what does…
A:
Q: The cost of electricity in Los Angeles is 5 cents per 1,000,000 joules. Suppose a small 2000-watt…
A: Given data: Cost of electricity = 5 cents per 1,000,000 J Power (P) = 2000 W Time (t) = 3 hours…
Q: Compare the energy consumption of two commonly used items in the household. Calculate the energy…
A: Q. Given information Power consumed by toaster Pt = 1.00 kW Power consumed by bulb Pb = 11.0 W
Q: A 660 W electric heater is designed to operate from a 120 V source. If the source voltage drops to…
A: Given, The power of the electric heater = 660 W The source voltage, V = 120 v New source voltage,…
A typical cost for electrical power is $0.120 per kilowatthour
Suppose
your refrigerator uses 400 W of power when it’s running, and it runs
8 hours a day. What is the yearly cost of operating your refrigerator?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 3 images
