Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Chapter 5.3, Problem 1cT
In the following Questions, a Gaussian cylinder with radius a andl is placed in various electric fields. The end caps are labeled A and C and the side surfaces is labeled B. In each case, base your answer about the net flux only on qualitative arguments about the magnitude of the flux through the end caps and side surfaces.
C. The Gaussian cylinder encloses opposite charges of equal magnitude. (The charges are on the axis of the cylinder and equidistant from the center.)
• Find the sign of the flux through:
Surface A: Surface B: Surface C:
• Is the net flux through the Gaussian surface positive, negative, or zero?
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please answer both parts with good explanation.
The figures show cross sections of three-dimensional closed surfaces. They
have a flat top and bottom surface above and below the plane of the page.
However, the electric field is everywhere parallel to the page, so there is no
flux through the top or bottom surface. The electric field is uniform over each
face of the surface.
Figure
10 N/C
10 N/C
10 N/C
▾ Part B
For (Figure 2), does the surface enclose a net positive charge, a net negative charge, or no net charge?
Match the words in the left column to the appropriate blanks in the sentences on the right.
Submit
an outward
an inward
zero
no net charge
a net negative charge
a net positive charge
There is
flux through each side of the surface, which indicates that there is
enclosed in this surface.
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A net flux of 6.75×10^4N⋅m2/C passes inward through the surface of a sphere of radius 5.25 cm.
a. What is the net charge, in coulombs, contained within the sphere?
b. Which statement best describes the distribution of the charge inside the sphere?
All of the charge is concentrated in a point charge.
The flux indicates the net charge enclosed in the surface, but it yields no information about the distribution of the charge.
The charge can be distributed in many different ways, but the distribution must be spherically symmetric.
Both positive and negative charges are contained within the sphere, but most of the charges cancel yielding the net charge obtained in the previous step.
The charge is uniformly distributed throughout the volume of the sphere.
The charge is distributed over a thin spherical shell within the sphere.
Chapter 5 Solutions
Tutorials in Introductory Physics
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