2. a) The resistivity of copper is 1.7241 x 10-8 (-m) at 20°C. What is the conductivity of copper at 27°C in units of (0-m)-¹ and (0-cm)-1 if the temperature coefficient of resistivity of copper is 3.9 x 10-³/°C? b) Explain the change of conductivity with temperature. 2 For carbon: c -25 x 10-50-m anda --50 x 10-4 °C

2. a) The resistivity of copper is 1.7241 x 10-8 (-m) at 20°C. What is the conductivity of copper at 27°C in units of (0-m)-¹ and (0-cm)-1 if the temperature coefficient of resistivity of copper is 3.9 x 10-³/°C? b) Explain the change of conductivity with temperature. 2 For carbon: c -25 x 10-50-m anda --50 x 10-4 °C

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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