College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Expert Solution
Step 1
- Consider a uniformly charged sphere of radius R and total charge Q.
The volume charge density of this sphere will be,
To calculate the electric field we draw a gaussian surface of radius r < R, as shown in the figure with dotted lines.
The electric field from a shell if given by,
Now, Qenclosed when r < R will be,
Here, ρ denotes the volume charge density and dv denotes the volume of the enclosed surface.
As ρ is constant,
Substituting the known values in equation (i),
Hence, option b is the correct answer.
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