The proportionality constant is called resistance and depends on the material used. Typical In the table, values of, units of which are ohm.m, are given for some conductive materials. What can be said about this picture? And which is the best conductor

The proportionality constant is called resistance and depends on the material used. Typical In the table, values of, units of which are ohm.m, are given for some conductive materials. What can be said about this picture? And which is the best conductor

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 14CQ: The current I is measured through a sample of an ohmic material as a voltage V is applied, (a) What...

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Question

Resistivity and Temperature Coefficients (at 20 °C)
Material
Resistivity, p (ohm.m)
Temperature Coefficient, a (°C)
Silver
1.59x10-8
0.0061
Copper
1.68x10-8
0.0068
Aluminum
2.65x10-8
0.00429

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