A thin plastic rod is bent into a circular arc of radius R, angle a, and with center at the origin as indicated in the diagram. The rod carries a uniformly distributed charge q and is located in the x-y-plane. Answer the following questions to determine the electric field at the origin. de →x 1. [5pts] Consider an infinitesimal piece of the bent rod with angular length de, located at an angle 0 from the +y axis as shown in the schematic. Find an expression for the relative position vector that points from the center of this infinitesimal piece to the observation location at the origin. 2. [5pts] Determine an expression for the charge dq on the infinitesimal piece of rod in terms of de and relevant known variables.

University Physics Volume 2
18th Edition
ISBN:9781938168161
Author:OpenStax
Publisher:OpenStax
Chapter6: Gauss's Law
Section: Chapter Questions
Problem 58P: Consider a uranium nucleus to be sphere of radius R=7.41015 m with a charge of 92e distributed...
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A thin plastic rod is bent into a circular arc of
radius R, angle a, and with center at the origin
as indicated in the diagram. The rod carries a
uniformly distributed charge q and is located in
the x-y-plane. Answer the following questions to
determine the electric field at the origin.
de
→x
1. [5pts] Consider an infinitesimal piece of the bent rod with angular length de, located at an angle 0 from the
+y axis as shown in the schematic. Find an expression for the relative position vector that points from
the center of this infinitesimal piece to the observation location at the origin.
2. [5pts] Determine an expression for the charge dq on the infinitesimal piece of rod in terms of de and relevant
known variables.
Transcribed Image Text:A thin plastic rod is bent into a circular arc of radius R, angle a, and with center at the origin as indicated in the diagram. The rod carries a uniformly distributed charge q and is located in the x-y-plane. Answer the following questions to determine the electric field at the origin. de →x 1. [5pts] Consider an infinitesimal piece of the bent rod with angular length de, located at an angle 0 from the +y axis as shown in the schematic. Find an expression for the relative position vector that points from the center of this infinitesimal piece to the observation location at the origin. 2. [5pts] Determine an expression for the charge dq on the infinitesimal piece of rod in terms of de and relevant known variables.
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University Physics Volume 2
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ISBN:
9781938168161
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OpenStax
Publisher:
OpenStax