In the bedroom of your house you would like to run a 360 W toward, a 30 W alarm clock, a 720 W tanning bed, and three 60 W lights. Assuming your house is wired for 120 Volts, how much current will be pulled by these electrical devices? Amps

In the bedroom of your house you would like to run a 360 W toward, a 30 W alarm clock, a 720 W tanning bed, and three 60 W lights. Assuming your house is wired for 120 Volts, how much current will be pulled by these electrical devices? Amps

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter22: Magnetism

Section: Chapter Questions

Problem 54PE: An AC appliance cord has its hot and neutral wires separated by 3.00 mm and carries a 5.00-A...

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SI. A physics student has a single-occupancy dorm loom. The student lias a small refrigerator that runs with a current of 3.00 A and a voltage of 110 V, a lamp that contains a 100-YV bulb, an overhead light with a 60-W bulb, and various other small devices adding up to 3.00 W. (a) Assuming the power plant that supplies 110 V electricity to the dorm is 10 km away and the two aluminum transmission cables use 0-gauge wire with a diameter of 8.252 mm, estimate the percentage of the total power supplied by the power company that is lost in the transmission, (b) What would be the result is the power company delivered the electric power at 110 kV?
A young man owns a canister vacuum cleaner marked 535 W [at] 120 V and a Volkswagen Beetle, which he wishes to clean. He parks the car in his apartment parking lot and uses an inexpensive extension cord 15.0 m long to plug in the vacuum cleaner. You may assume the cleaner has constant resistance, (a) If the resistance of each of the two conductors in the extension cord is 0.900 , what is the actual power delivered to the cleaner? (b) If instead the power is to be at least 525 W, what must be the diameter of each of two identical copper conductors in the cord he buys? (c) Repeat part (b) assuming the power is to be at least 532 W.
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Integrated Concepts (a) An aluminum power transmission line has a resistance of 0.0580/km. What is its mass per kilometer? (b) What is the mass per kilometer of a copper line having the same resistance? A lower resistance would shorten the heating time. Discuss the practical limits to speeding the heating by lowering the resistance.
. The generator at a large power plant has an output of 1,000,000 kW at 24,000 V. (a) If it were a DC generator, what would he the current in it? (b) What is its energy output each day—in joules and in kilowatt—hours? (c) If this energy is sold at a price of 10 cents per kilowatt-hour, how much revenue does the power plant generate each day?
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