3. An 18-gauge copper wire (p = 1.72x10% 0.m) has a diameter of 1.02 mm and a cross- sectional area of 8.20x10-7m². It carries a current of 1.67 A. Find (a) the electric-field magnitude in the wire; (b) the potential difference between two points in the wire 50m apart; (c) the resistance of a 50m length of this wire.
3. An 18-gauge copper wire (p = 1.72x10% 0.m) has a diameter of 1.02 mm and a cross- sectional area of 8.20x10-7m². It carries a current of 1.67 A. Find (a) the electric-field magnitude in the wire; (b) the potential difference between two points in the wire 50m apart; (c) the resistance of a 50m length of this wire.
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 61P
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![3. An 18-gauge copper wire (p = 1.72x10% 0.m) has a diameter of 1.02 mm and a cross-
sectional area of 8.20x10-7m². It carries a current of 1.67 A. Find (a) the electric-field
magnitude in the wire; (b) the potential difference between two points in the wire 50m
apart; (c) the resistance of a 50m length of this wire.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6a0e5c20-49d2-403a-9c6b-1fa30849c4b8%2Faeba6caf-e9ce-4f06-b0d9-faf73dcac9a8%2Fhwtsifk_processed.png&w=3840&q=75)
Transcribed Image Text:3. An 18-gauge copper wire (p = 1.72x10% 0.m) has a diameter of 1.02 mm and a cross-
sectional area of 8.20x10-7m². It carries a current of 1.67 A. Find (a) the electric-field
magnitude in the wire; (b) the potential difference between two points in the wire 50m
apart; (c) the resistance of a 50m length of this wire.
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