A heater uses 26A when used in a 110-V line. If electric power costs 9.75 per kilo watt hour, the cost for running the heater for 12 hours is?
Q: A coffee maker draws 6.5 amperes when operating at 120 V. How much electric power does it use. I…
A: Given that the coffee maker draws current I=6.5A and operates with a voltage V=120V We have to…
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: Two heaters A and B are in parallel across supply voltage V. Heater A produces 757 kcal in 20 min…
A: Given that For heater A Heat H = 757 kcal Time t = 20 min Resistance RA = 10 ohm For heater B Heat H…
Q: A 1520-W hair dryer plugs into a 120-V outlet. What is the current through the hair dryer when it…
A: Power of hair dryer (P) = 1520 W Voltage (V) = 120 volts
Q: A fan in an air conditioning unit rated at 250 WCome on for an average of 5.0 min at A time, a…
A: Power of fan = P = 250 W Average time fan is on at a time = t=5 min = 300 sec Number of times a day…
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 3.6-volt battery is used to operate a cell phone for 5.0 minutes. If the cell phone dissipates…
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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 100 W electric bulb is used for 10 hours a day. How many units of energy are consumed in 30 days?
A: The total power consumed by a bulb,
Q: A refrigerator using 1030 W runs two-thirds of the time. How much does the electricity cost to run…
A: A refrigerator using 1030 W runs two-thirds of the time. How much does the electricity cost to run…
Q: How much does it cost to operate a 104-W device continuously for a week if the power utility rate is…
A: Given data: Power (P) = 104 W Power utility rate = 0.30 ¢/kWh Time (t) = 1 week Required: The cost…
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: How much voltage does a battery have if 7.45 Amps of current flows through a 15.03 Ohm resistor?
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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: An electric clothes dryer is rated at 2,000 W. How much energy does it use in 35 min? kWh
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Q: A refrigerator using 1030 W runs one-third of the time. How much does the electricity cost to run…
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Q: A refrigerator using 1028 W runs one-third of the time. How much does the electricity cost to run…
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Q: A current of 9 A flows through an appliance connected to a standard 120-volt outlet. Calculate the…
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Q: The Federal Electricity Commission charges electricity at $0.801 for each kWh consumed at its basic…
A: Given:household appliances are listed along with power consumptionand time of usagerate of…
Q: An 8-A electric lamp is plugged to a 110-V outlet and used fo O 2376 kJ O 2592 kJ O 4536 kJ
A: i=8 AV=110 Vt= 45 minutes= 45×60 s let energy required be E
Q: What is the output voltage of a 3.0000-V lithium cell in a digital wristwatch that draws 0.300 mA,…
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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: An electric blanket is connected to a 120-V outlet and consumes 350 W of power. What is the…
A: Given data: The voltage of the outlet, V=120V Power consumed by the blanket, P=350W
Q: An electric space heater has a resistance of 8.10 ohms. How much energy does it use when connected…
A: Given data: Resistance (R) = 8.10 Ω Voltage (V) = 110 V Time (t) = 30 minutes Required: Energy (E)
Q: A freezer of resistance 10.0 ΩΩ is connected to a 110. V source. What is the power delivered when…
A: power of the circuit having resistance R and connected to supply V is given by POWER P = V2/R (…
Q: Two resistors are connected in series with a 9.000 V battery. The resistances are measured to be…
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Q: The resistance of electric heater is 75 Ohm when connectedto 120 V What is the power consumption of…
A: Given that :Resistance of the electric heater (R) = 75 ohmVoltage ( V) = 120 VPower consumption (P)=…
Q: The resistance of electric heater is 13 Ohm when connectedto 120 V What is the power consumption of…
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Q: A 10-W light bulb is connected into a 220-V outlet. (a) What is the resistance of the bulb? (b) What…
A: Power of light bulb (P) = 10 W Potential difference at the outlet (V) = 220 Volts
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