5. During the Christmas season, Sel Erbate uses the equivalent of 45 strings of 100 mini-bulbs to light the inside and outside of his home. Each 100-bulb string of lights is rated at 40 Watts. The average daily usage of the strings is 7 hours. The lights are used for approximately 40 days during the holiday season. a. Determine the resistance of each string of lights. Each is powered by 110-volt outlet. b. Determine the energy consumed (in kWh) by all of the lights over the course of 40 days. c. If Sel pays 12 cents/kWh for electrical energy, then what is the total cost of Christmas lighting for a single season?

5. During the Christmas season, Sel Erbate uses the equivalent of 45 strings of 100 mini-bulbs to light the inside and outside of his home. Each 100-bulb string of lights is rated at 40 Watts. The average daily usage of the strings is 7 hours. The lights are used for approximately 40 days during the holiday season. a. Determine the resistance of each string of lights. Each is powered by 110-volt outlet. b. Determine the energy consumed (in kWh) by all of the lights over the course of 40 days. c. If Sel pays 12 cents/kWh for electrical energy, then what is the total cost of Christmas lighting for a single season?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.

Question

5. During the Christmas season, Sel Erbate uses the
equivalent of 45 strings of 100 mini-bulbs to light the
inside and outside of his home. Each 100-bulb string of
lights is rated at 40 Watts. The average daily usage of the
strings is 7 hours. The lights are used for approximately 40
days during the holiday season.
a. Determine the resistance of each string of lights. Each
is powered by 110-volt outlet.
b. Determine the energy consumed (in kWh) by all of the
lights over the course of 40 days.
c. If Sel pays 12 cents/kWh for electrical energy, then
what is the total cost of Christmas lighting for a single
season?

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