Charge is distributed throughout a very long cylindrical wire with radius R. The volume charge density increases with distance from the central axis of the wire according to p = k is a constant and r is the radial distance from the central axis. What is the magnitude of the field at the kr² where surface of the wire? A. 0 B. kR³ 4€0 C. kR' 4€0" D. kR? 4€0

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
Chapter19: Electric Forces And Electric Fields
Section: Chapter Questions
Problem 55P
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Charge is distributed
throughout a very long cylindrical wire with radius R.
The volume charge density increases with distance from
the central axis of the wire according to p = kr² where
k is a constant and r is the radial distance from the
central axis. What is the magnitude of the field at the
surface of the wire?
А. 0
B. kR³
4€0
C. kR4
4€0r
D. kR?
4€0
Transcribed Image Text:Charge is distributed throughout a very long cylindrical wire with radius R. The volume charge density increases with distance from the central axis of the wire according to p = kr² where k is a constant and r is the radial distance from the central axis. What is the magnitude of the field at the surface of the wire? А. 0 B. kR³ 4€0 C. kR4 4€0r D. kR? 4€0
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