r lighting of refrigerators is provided by incandescent lamps whose switches are actuated by the opening of the refrigerator door. Consider a refrigerator whose 40 W lightbulb remains on continuously as a result of a malfunction of the switch. If the refrigerator has a coefficient of performance of 1.3 and the cost of electricity is Rs. 7 per kWh, determine the increase in the energy consumption of the refrigerator and its cost per year if the switch is not fixed. Assume the refrigerator is opened 20 times a day for an average of 30 s.
r lighting of refrigerators is provided by incandescent lamps whose switches are actuated by the opening of the refrigerator door. Consider a refrigerator whose 40 W lightbulb remains on continuously as a result of a malfunction of the switch. If the refrigerator has a coefficient of performance of 1.3 and the cost of electricity is Rs. 7 per kWh, determine the increase in the energy consumption of the refrigerator and its cost per year if the switch is not fixed. Assume the refrigerator is opened 20 times a day for an average of 30 s.
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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The interior lighting of refrigerators is provided by incandescent lamps whose switches are
actuated by the opening of the refrigerator door. Consider a refrigerator whose 40 W
lightbulb remains on continuously as a result of a malfunction of the switch. If the
refrigerator has a coefficient of performance of 1.3 and the cost of electricity is Rs. 7 per
kWh, determine the increase in the energy consumption of the refrigerator and its cost per
year if the switch is not fixed. Assume the refrigerator is opened 20 times a day for an
average of 30 s.
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