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Video Video
TITLE: Electric current [videorecording].
SERIES: Investigations in physics experiments and observations
PUBLISHED: Princeton, NJ : Films for the Humanities and Sciences ; 1997.
DESCRIPTION: 1 video cassette (30 min.) : sd., col. ; 1/2 in.
NOTES: This investigation employs a 100-watt incandescent bulb, nichrome wire, and a variac; electric wire, a dry cell, and a compass; an ammeter; an induction coil; argon, helium, neon, and mercury and a discharge tube; a string of lights on a Christmas tree; a Crookes tube and induction coil; and electrodes, an electric bulb, and a beaker alternately filled with water, sugar, table salt, vinegar, lemon juice, and orange juice solutions to understand the following: How incandescent bulbs and florescent tubes work, Ohm's law, Proportional relationship between current and voltage, Series and parallel configurations, Positive and negative electrons, Electrically conductive and nonconductive liquids, Ions.
NOTES: English

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