Electrical resis4vity capacitors and resistors

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Unformatted text preview: e 10 4 x 10 0 2 x 10 - 9 - 13 Aluminum oxide <10 POLYMERS - 4 - 11 Soda- lime glass 10 - 10 - 14 Polystyrene <10 - 15 - 17 Polyethylene 10 - 10 - 6 10 semiconductors Selected values from Tables 18.1, 18.3, and 18.4, Callister & Rethwisch 8e. insulators Electrical Resis4vity As temperature increases, the magnitude of thermal vibra4ons increases (entropy) as does the number of vacancies. These factors serve to increase the resis4vity of metals with increasing temperature (contrasted to the behavior of semiconductors). Electrical Resis4vity Capacitors and Resistors Capacitors consist of a dielectric sandwiched between two conductors. A charge builds when a voltage is applied. Eventually the charge is released in one burst. Resistors are two- terminal...
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This note was uploaded on 02/28/2012 for the course EMA 3010 taught by Professor Unknown during the Fall '08 term at University of Florida.

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