How long can a 1500 W heater be on before using more than 12 kWh of energy?
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: The resistance of an electric heater is 70 Ω when connected to 120 V. How much energy does it use…
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Q: The resistance of an electric heater is 90 Ω when connected to 120 V. How much energy does it use…
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Q: A 72.3 ohm resistor is put into a circuit with a 13 volt battery. What is the power dissipated (in…
A: Given: The resistance of the circuit is 72.3 Ohm. The supplied voltage is 13 V.
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A: The expression for the required time,
Q: A two-slice bread toaster consumes 836.0 W of power when plugged into a 240.0-V source. (a) What is…
A: Given data The power is P=836.0 W The potential difference is Vo=240.0 V (a) The power is,…
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: A block heater of a car is designed to keep the oil in the engine block warm during cold weather. If…
A: Given data: Voltage (V) = 120 V Current (I) = 3.30 A Required: Power (P)
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: The resistance of electric heater is 14 Ohm when connectedto 120 V What is the power consumption of…
A: Given, the resistance of electric heater is R=14 Ohm when connected to a voltage source, V=120 V We…
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: 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: 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: When a light bulb is rated at 60 W, it means that the bulb uses 60 kilo Joules of power when it is…
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Q: a heater is left on and uses 0.58 A when plugged into a 120 V line. if electric power costs 12…
A: Assume that the current and voltage are RMS value, and the heater is purely resistive load.The power…
Q: In a particular town, electrical energy costs $0.12 per kilowatt-hour. (Round your answers, in…
A: Given the town cost 0.12 dollars per kilowatt-hour. Let P defines as the power. And t be defined as…
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: A monthly éléčtřić bill iš based or ge. • A set of electronic devices that altogether are rated at…
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Q: What is the voltage provided to a fan drawing 3 A DC current and is operating at 350 W?
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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: 10.a. To provide a useful purpose, electrical energy is most often converted to A. heat, chemical…
A: Solution: 10.a electrical energy is most often converted to B. heat, light, or mechanical energy.…
Q: Appliances that require a lot of power, such as a dryer or a stove, typically run on 240 V, and…
A: Given: Initial Power, P1 = 4461 W Initial Voltage, V1 = 240 V Final Voltage, V2 = 120 V To…
Q: A 100-ohm load dissipates 400W of power. how much is the voltage and Current across the load?
A: Resistance, R = 100 ohm Power, P = 400 W
Q: A 1750 W radiant heater is constructed to operate at 120 V. What is the current in the heater when…
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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: How much energy does a toaster use if it is rated at 1200 W and runs current for 2 minutes as it…
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Q: How much Energy does a 100 W lightbulb use in 8 hours? If the time were doubled what would happen to…
A: Power of bulb = 100 W Time = T = 8 hour
Q: A 802.73 watt generator can produce a current of 17.12 amps through a circuit. What is the total…
A: Given Power (P) = 802.73 W Current (Io) = 17.12 A Let, voltage across the circuit is ' Vo '.
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- A freezer that is never turned off draws an average current of 2.5 A when it is plugged into a 115 V outlet. What is the yearly cost of operating the freezer if the average cost of electricity is $0.16/kWh [round your final answer to zero decimal places]?How much electrical energy (in KWh) would a 120 W light bulb use in 34 days if left on steadily?The resistance of an electric heater is 90 Ω when connected to 120 V. How much energy does it use during 20 min of operation?
- The resistance of electric heater is 32 Ohm when connectedto 120 V What is the power consumption of the heater?I have a computer that consumes a maximum of 15 W of power and I use a 5000 mAh battery. How long will it last at maximum power draw assuming it uses 20 V.The resistance of electric heater is 13 Ohm when connectedto 120 V What is the power consumption of the heater?
- The resistance of an electric heater is 90 Ω when connected to 120 V. How much energy does it use during 50 min of operation?A 1⁄2 hp motor draws a current of 4.0 A from a 120-V line. (a) Calculate the electric power used by the motor. (b) Calculate the motor’s efficiency – that is, the work it does per unit time divided by the electrical power it uses.If a 12V 4 W light bulb is plugged with a 6V battery, what is the electric power?