You have an old desk lamp which you use for studying. You decide to replace the old filament globe of z W with a new generation LED globe of y W. If you use your desk lamp for z h per day, and electricity costs R2/kWh, how much money do you save in a month (30 days) by using the new globe?
You have an old desk lamp which you use for studying. You decide to replace the old filament globe of z W with a new generation LED globe of y W. If you use your desk lamp for z h per day, and electricity costs R2/kWh, how much money do you save in a month (30 days) by using the new globe?
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Use these values
x=80
y=6
z=2
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