2. Calculate the current density in a copper wire at 20°C, if an electric field of 0.470 V/m existsin the wire. The resistivity of copper is 1.7 x 10-8 N. m.

The equation for the resistivity of the wire is given by,

Answered: 2. Calculate the current density in a…

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 73AP: When 100.0 V is applied across a 5-gauge (diameter 4.621 mm) wire that is 10 m long, the magnitude...

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2. Calculate the current density in a copper wire at 20°C, if an electric field of 0.470 V/m exists in the wire. The resistivity of copper is 1.7 x 10-8 N. m.