qA 22-volume, highly illustrated, A-Z general encyclopedia for all ages, featuring sections on how to use World Book, other research aids, pronunciation key, a student guide to better writing, speaking, and research skills, and comprehensive index. The World Book editorial staff presents information from the vast reservoir of knowledge in the most accessible and usable form. Editors design World Book articles especially to meet the reference and study needs of students in elementary school, junior high school, and high school.q--Provided by publisher.Ronald n. Helms Related Articles in World Book include: Arc Light Electric Meter Fluorescent Lamp Edison, Thomas A. Electric Switch Neon Electric ... Electricity is not an object that can be weighed or marked off in feet or centimeters, but it can be measured by its effects. Electric current is ... The charges carried by an applied electromotive force through a circuit make up an electric current. The current isanbsp;...
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