1. A home uses twenty 60W, 2% efficient incandescent bulbs, which are all'on' anaverage of 4 hours daily.a) find the annual energy useb) what wattage would be required for a 15% efficient LED light to produce thesame illumination as the 60 W?2. With 4 showers a day, each 7 minutes long at 38°C:a) what is the annual energy use for a 60% efficient gas water heater, assuming awater input temperature of 5° and 10 L/minute usage. FrequentyEditingQuestion 1The histogram shows the distribution of the number of televisions in the homes of 91 communitycollege students. Complete a through e below.2520-10-Number of TVs

We are authorized to answer one question at a time. We are answering the first question (1 a,b).…

1. A home uses twenty 60W, 2% efficient incandescent bulbs, which are all 'on' anaverage of 4 hours daily. a) find the annual energy use b) what wattage would be required for a 15% efficient LED light to produce the same illumination as the 60 W?

1. A home uses twenty 60W, 2% efficient incandescent bulbs, which are all 'on' anaverage of 4 hours daily. a) find the annual energy use b) what wattage would be required for a 15% efficient LED light to produce the same illumination as the 60 W?

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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Concept explainers

Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.

Question

1. A home uses twenty 60W, 2% efficient incandescent bulbs, which are all
'on' anaverage of 4 hours daily.
a) find the annual energy use
b) what wattage would be required for a 15% efficient LED light to produce the
same illumination as the 60 W?
2. With 4 showers a day, each 7 minutes long at 38°C:
a) what is the annual energy use for a 60% efficient gas water heater, assuming a
water input temperature of 5° and 10 L/minute usage.

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