Calculate how much will it cost to light a 25 Watts light bulb for 110 minutes. The cost of electricity as of February 2022 is approximately equal to 9.50 Php/ KWh.
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: How much energy is consumed by a 1.1 kW hair dryer used for 12 min? How much energy is consumed by a…
A: Given data Power consumed of hair dryer is P= 1.1 kW Time is t= 12 min =0.2 hour The amount of…
Q: A 400-W computer (including the monitor) is turned on for 8.0hours per day. If eletricity costs…
A: GIVEN DATA : POWER RATING OF COMPUTER P = 400 W TIME…
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…
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Q: Use the information and table below to answer the following question. A student is studying…
A: Given Current used in Refrigerator = 4 A Current used in Microwave 8 A Current used in…
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: A student in the laboratory connects a 15 Ω resistor, a 25 Ω resistor, and a 41 Ω resistor in series…
A: Calculate the equivalent resistance in the circuit. Req=R1+R2+R3Req=15 Ω+25 Ω+41 ΩReq=81 Ω
Q: R
A: Given, V=9.0V R=9Ω Power supplied is given by, P=V2R
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: How much does it cost to operate a 695W heater for exactly 30.0 min if electrical energy costs…
A: Given, Power, P = 695 W time, t = 30.0 min cost of electrical energy, C = $0.060 per kW.h
Q: A 400-W computer (computer plus monitor) is turned on 8.0 hours per day. If electricity costs ₱ 9.0…
A: Given Data: Power used by computer per hour = P = 400 W = 0.4 kW Time t = 8 hours /day Cost per kWh…
Q: A bird stands on a dc electric transmission line carrying 2,974 A. The line has 28 ?μ ΩΩ…
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Q: Consider that a heart of defibrillator uses 404 j of energy in 11 ms What is the average power…
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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: For the circuit shown in the figure, determine the magnitude of the currents I2, I3, and 14 passing…
A: Given:- A circuit is given as The values are ε1=24 V ε2= 3.0 V ε3= 22.5 V ε4= 1.50 V R1= 39.0Ω…
Q: A voltmeter connected between two points P and Q in an electrical circuit shows a reading of 1V.…
A: Given : A voltmeter connected between two points P and Q in an electrical circuit shows a reading of…
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A: In the question, the following information was given: Capacitance (C) = 30 µF Resistance (R) = 50…
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: The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value.…
A:
Q: R2 = 576 2 R = 576 2 ww R3 = 576 2 ww
A: Given: R1=576 ΩR2=576 ΩR3=576 Ω The supplied voltage is 120 V.
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…
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Q: A battery with an emf of 21 V delivers a constant current of 3.7 mA to a device. How much work does…
A: (given) Battery voltage (V) = 21 V Current (I) = 3.7 mA…
Q: A family goes on vacation for one week but forgets to turn off an electric fan that consumes…
A: Given data: Power (P) = 200 W = 0.200 kW Total time = 1 Week Cost of electricity = 12.0 ¢/kW.h…
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- In physics, the half-life is often used to characterize exponential decay of physical quantities such as radioactive substances. The half-life is the time required for the quantity to decay to half of its initial value. The time constant for the voltage on a capacitance discharging through a resistance is τ=RC. Find an expression for the half-life of the voltage in terms of R and C.A solar panel of length L and width W produces 28.4 kWh in a day. Under the same conditions (i.e. the same amount of solar energy available and the same efficiency) a solar panel of length 2L and width 2W would produce how many kWh in a day? Round off your answer to 2 decimal places, but do not write the unit.In a particular town, electrical energy costs $0.12 per kilowatt-hour. (Round your answers, in dollars, to at least two decimal places.) (a) How much does it cost to operate an old-style incandescent 100-W light bulb continuously for 24 hours? $ (b) A modern LED light bulb that emits as much visible light as a 100-W incandescent only draws 16.0 W of power. How much does it cost to operate this bulb for 24 hours? $ (c) A particular electric oven requires a potential difference of 220 V and draws 20.0 A of current when operating. How much does it cost to operate the oven for 4.80 hours? $
- Lee watchesTV for 2 hours per day. During that time, The TV consumes 200 W per hour. Electricity cost 12 cents per 1 kilowatt hour. How much does lees TV cost to operate from a month of 30 days?The cost to operate a clothes dryer for a year is $80.25. If the rate for electrical energy is 8.8¢/kWh, and the clothesdryer is used for 700 hours in a year, what is the power rating of the clothes dryer? Explain clearly.A monthly electric bill is based on the following usage: A set of electronic devices that altogether are rated at 1,812 W. The devices are ON 12 hours a day. A set of light of total power 562 W that are on 24 hours a day. What would be the value of the bill if we count one month as 30 days and electricity costs $0.08 /kWh. Write down your answer as an amount of dollars rounded off to an integer value ( no decimals) and do not put any unit.
- In a simple electric circuit, Ohm's law states that V = IR, where V is the voltage in volts, I is the current in amperes, and R is the resistance in ohms. Assume that, as the battery wears out, the voltage decreases at 0.04 volts per second and, as the resistor heats up, the resistance is increasing at 0.02 ohms per second. When the resistance is 100 ohms and the current is 0.01 amperes, at what rate is the current changing? amperes per secondGiven: power needed to run the TV: 500W What is the cost of running the T.v if we binge watch 5 hours of netflix? Assume the utility rate is 0.10 $/kWhr. Answer: $0.25 Show all workA utility company charges 8.5 cents/kWh. If a consumer operates a 40-W light bulb continuously forone day, how much is the consumer charged?
- A battery with an emf of 26 V delivers a constant current of 4.3 mA to a device. How much work does the battery do in 5 minutes? Express your answer in J, to at least one digit after the decimal point.The people who live in suburbs use simultaneously: 2Hp aircon for 3 hrs. 900 watts toaster for 9 mins., a 1.50kW heater for 8 hrs., a 3.4kW broiler for 20 mins. a four 100 watts lamps for 5 hrs. If the total cost she has to pay is $2.50, What is the unit cost per Kw-hr?An electrical circuit contains a capacitor of 52 picofarads and a resistor of 1344 ohms. If the capacitor is fully charged, and then the voltage is interrupted, in how much time will about 95% of its charge be transferred to the resistor?