Suppose that we know that the electric field created by an infinitely long charged cylindrical rod is axial. Assume that the rod is an insulator and has a uniform positive interior charge density p0 and has a radius R. a. Find the electric field both inside and outside the rod. b. Explain why the rod's linear charge density (charge per unit length) is lambda = p0 * pi * R2. c. Express the rod's external electric field in terms of lambda.
Suppose that we know that the electric field created by an infinitely long charged cylindrical rod is axial. Assume that the rod is an insulator and has a uniform positive interior charge density p0 and has a radius R. a. Find the electric field both inside and outside the rod. b. Explain why the rod's linear charge density (charge per unit length) is lambda = p0 * pi * R2. c. Express the rod's external electric field in terms of lambda.
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter25: Gauss’s Law
Section: Chapter Questions
Problem 74PQ
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Suppose that we know that the electric field created by an infinitely long charged cylindrical rod is axial. Assume that the rod is an insulator and has a uniform positive interior charge density p0 and has a radius R.
a. Find the electric field both inside and outside the rod.
b. Explain why the rod's linear charge density (charge per unit length) is lambda = p0 * pi * R2.
c. Express the rod's external electric field in terms of lambda.
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