An aluminum wire with a diameter of 0.115 mm has a uniform electric field of 0.295 V/m imposed along its entire length. The temperature of the wire is 35.0°C. Assume one free electron per atom. (a) Use the information in this Table of Resistivities and Temperature Coefficients to determine the resistivity (in Ω · m) of aluminum at this temperature. ρ = Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. Ω · m (b) What is the current density (in MA/m2) in the wire? J = MA/m2 (c) What is the total current (in mA) in the wire? I = mA
An aluminum wire with a diameter of 0.115 mm has a uniform electric field of 0.295 V/m imposed along its entire length. The temperature of the wire is 35.0°C. Assume one free electron per atom. (a) Use the information in this Table of Resistivities and Temperature Coefficients to determine the resistivity (in Ω · m) of aluminum at this temperature. ρ = Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. Ω · m (b) What is the current density (in MA/m2) in the wire? J = MA/m2 (c) What is the total current (in mA) in the wire? I = mA
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter21: Current And Direct Current Circuits
Section: Chapter Questions
Problem 9P
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Question
An aluminum wire with a diameter of 0.115 mm has a uniform electric field of 0.295 V/m imposed along its entire length. The temperature of the wire is 35.0°C. Assume one free electron per atom.
(a)
Use the information in this Table of Resistivities and Temperature Coefficients to determine the resistivity (in Ω · m) of aluminum at this temperature.
ρ =
Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. Ω · m
Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. Ω · m
(b)
What is the current density (in MA/m2) in the wire?
J = MA/m2
(c)
What is the total current (in mA) in the wire?
I = mA
(d)
What is the drift speed of the conduction electrons?
vd = µm/s
(e)
What potential difference must exist between the ends of a 1.50 m length of the wire to produce the stated electric field?
ΔV = V
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