Question 1 A house has the following appliances: • Central Heat rated at 4kW (efficiency of 70%) • Electric dryer rated at 2kW (efficiency of 90%) • 10 lamps each rated at 150W (efficiency of 65%) What is the efficiency (in %) of all the appliances combined? Type your numeric answer and submit

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Question 1
A house has the following appliances:
• Central Heat rated at 4kW (efficiency of 70%)
• Electric dryer rated at 2kW (efficiency of 90%)
• 10 lamps each rated at 150W (efficiency of 65%)
What is the efficiency (in %) of all the appliances combined?
Type your numeric answer and submit
Transcribed Image Text:Question 1 A house has the following appliances: • Central Heat rated at 4kW (efficiency of 70%) • Electric dryer rated at 2kW (efficiency of 90%) • 10 lamps each rated at 150W (efficiency of 65%) What is the efficiency (in %) of all the appliances combined? Type your numeric answer and submit
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