Answered: An iron wire with cross-section 3.1 ×…

An iron wire with cross-section 3.1 × 10–0 m² carries current 158 A. Find the drift velocity Va, in units of milimeters per second, by assuming the existence of two carriers per iron atom.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 81CP: A 10-gauge copper wire has a cross-sectional area A=5.26mm2 and carries a current of I=5.00A . The...

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Question

An iron wire with cross-section 3.1 × 10–® m² carries current 158 A. Find the drift velocity Va, in units of
milimeters per second, by assuming the existence of two carriers per iron atom.
Hint: First, calculate number density n of the charge carriers.

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