Why Do the Lights Turn On?

Why Do the Lights Turn On?

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When you walk into a room and flip a light switch, a lightbulb turns on, illuminating the area. But how does one small switch do such a large job? Why Do the Lights Turn On? enlightens readers about the science behind electricity and circuits through full-color illustrations and photographs.Many electrical devices todaya€”air conditioners and refrigerators, for examplea€” are made to use less electricity than the ... This list shows you how many watts of power some common electrical devices use when theya#39;re on: 4 watts 55 to 90anbsp;...

Title:Why Do the Lights Turn On?
Author:Barbara J. Davis
Publisher:Infobase Publishing - 2010-03-06


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