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Physics 2213
Homework #2
Spring 2009
Read:
Chapter 21, sections 21.5, 6
Chapter 22, intro., sections 22.1 thru 22.4
Handouts:
Electric Field Line Model, Gauss' Law
Learning Goals:
(Be sure you understand where and how each goal in each assignment applies to our homework,
discussion, lecture, and lab activities.)
*
Distinguish between electric field lines and electric field vectors, and show how they are
related.
*
Sketch and describe the electric field line geometry for these charge distributions:
point
charge (+ or ), electric dipole (+  pair), 2 like charges (+ or ), sphere of charge, long line of
charge, long cylinder of charge, flat sheet of charge.
*
Use symmetry properties of charge distributions to deduce the geometric properties of their
electric fields.
*
Use Gauss' Law to determine the strengths of electric fields in charge systems of sufficiently
high symmetry — spherical, cylindrical, and planar.
*
Use Gauss' law to locate electric charges.
*
Conceptually translate an equation for an electric field as a function of position into a graph
(without doing detailed numerical calculations).
*
Determine the asymptotic limiting forms of the electric field as a function of position at small
and large distances from a distribution of electric charge(s), and explain what these forms
mean physically.
*
Show that your algebraic and numerical results have the correct units.
*
Show that your algebraic and numerical results are physically reasonable.
For extra practice:
Chap. 21:
E's & P's: #21.57, 62, 90, 91, 99, 103, 107
(not quizzed)k ,,
Chap. 22:
Q's #Q22.16, 9;
E's & P's #22.1, 5, 7, 8, 11, 13, 49, 63
To be prepared for WednesdayFriday, Feb. 46, at your 2nd weekly recitation session:
#21.59
[EField Lines & Particle Paths]
#21.61
[Infinite Line Charge EField Lines]
#21.89
[Finite Line of Charge]
#21.96
[Charge Semicircle]
#21.93
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This note was uploaded on 04/14/2009 for the course PHYS 2213 taught by Professor Perelstein,m during the Spring '07 term at Cornell University (Engineering School).
 Spring '07
 PERELSTEIN,M
 Gauss' Law, Magnetism, Work, Heat

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