3. For carbon; P20°c = 3.5 x 10-50-m and a = -5.0 x 10-4/°C. a) At what temperature does a carbon resistor have a resistance of 995 , if it has resistance of 1000 at 20°C? Assume negligible thermal expansion/contraction. b) What is the conductivity of carbon at the new temperature? c) How does a negative temperature coefficient of resistivity affect the conductivity of a material?

3. For carbon; P20°c = 3.5 x 10-50-m and a = -5.0 x 10-4/°C. a) At what temperature does a carbon resistor have a resistance of 995 , if it has resistance of 1000 at 20°C? Assume negligible thermal expansion/contraction. b) What is the conductivity of carbon at the new temperature? c) How does a negative temperature coefficient of resistivity affect the conductivity of a material?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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