Electric power on the move
Description
This Science Screen Report examines the production, transportation, and consumption of electricity. Using the Hoover Dam as an example of efficient hydroelectric power generation, the program illustrates how transformers raise or lower voltage to manageable levels and how electricity is specifically channeled to illuminate buildings, power devices, and propel vehicles. Vital electrical concepts are discussed, including the difference between alternating and direct current, the advantages of neon over filament bulbs, and the definitions and significance of ohms, volts, and amperes.
Runtime
18 min
Subjects
Genre
Date of Publication
[2006], c2004
Database
Films on Demand
Direct Link
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