A wire sample (0.75 mm in diameter and 20 cm in length) is placed in anelectrical circuit. A voltage drop of 464 mV is measured across the length ofthe wire as it carries a 2 A current. Calculate the electrical conductivity of thisalloy. From Table 4 below, which gives the conductivities of differentmaterials at 20C, identify the material. MaterialElectrical Conductivity(Sm-1)Manganin 2x106Nickel 14x106Aluminium 30x106Copper 50x106Silver 63x106Table 4. Conductivities of different materials at 20 C.
A wire sample (0.75 mm in diameter and 20 cm in length) is placed in anelectrical circuit. A voltage drop of 464 mV is measured across the length ofthe wire as it carries a 2 A current. Calculate the electrical conductivity of thisalloy. From Table 4 below, which gives the conductivities of differentmaterials at 20C, identify the material. MaterialElectrical Conductivity(Sm-1)Manganin 2x106Nickel 14x106Aluminium 30x106Copper 50x106Silver 63x106Table 4. Conductivities of different materials at 20 C.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Question
A wire sample (0.75 mm in diameter and 20 cm in length) is placed in an
electrical circuit. A voltage drop of 464 mV is measured across the length of
the wire as it carries a 2 A current. Calculate the electrical
alloy. From Table 4 below, which gives the conductivities of different
materials at 20C, identify the material.
Material
Electrical Conductivity
(Sm-1)
Manganin 2x106
Nickel 14x106
Aluminium 30x106
Copper 50x106
Silver 63x106
Table 4. Conductivities of different materials at 20 C.
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