A 14 gauge copper wire of diameter 1.628 mm carries a current of 10.5 mA. (ρcopper=1.72×10−8Ω⋅m.) a) What is the potential difference across a 2.20 mm length of the wire? Express your answer in volts. b) What would the potential difference in part A be if the wire were silver instead of copper, but all else was the same? ρsilver=1.47×10−8Ω⋅m. Express your answer in volts.

A 14 gauge copper wire of diameter 1.628 mm carries a current of 10.5 mA. (ρcopper=1.72×10−8Ω⋅m.) a) What is the potential difference across a 2.20 mm length of the wire? Express your answer in volts. b) What would the potential difference in part A be if the wire were silver instead of copper, but all else was the same? ρsilver=1.47×10−8Ω⋅m. Express your answer in volts.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 28P: An aluminum wire 1.628 mm in diameter (14-gauge) carries a current of 3.00 amps, (a) What is the...

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