A BIG spool of copper wire has a resistance of 8 2 as measured from end of the wire to the other. If the wire has a diameter of 3.0 mm and if copper has a resistivity of 1.68x10-8 m, find the length of the wire in meters.
A BIG spool of copper wire has a resistance of 8 2 as measured from end of the wire to the other. If the wire has a diameter of 3.0 mm and if copper has a resistivity of 1.68x10-8 m, find the length of the wire in meters.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter17: Current And Resistance
Section: Chapter Questions
Problem 21P
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19 please need help, keep in mind the 7 basic units and watch the sig figs. Please write in standard form need to see all the numbers in solution thank you so much
Expert Solution
Concept
Given: Diameter of wire , Radius of wire , Resistivity of wire , Resistance of wire .
Required: Length of the wire .
Resistance of a wire of length L and area of cross section A is given by, , where is resistivity of wire.
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