PROBLEMS TO BE WRITTEN UP AND TURNED IN AT RECITATION
This problem is due at your first recitation meeting after MON 09/06.
The problem should be written on a single sheet of paper (front and back),
or if multiple sheets are used, staple them together. For full credit,
the work must be neat, with clearly labeled diagrams. The labels must
be in BOTH words and symbols. For each part of each problem, you must
BRIEFLY explain your strategy in words, as well as neatly showing your
physics equations and math, with proper units.
HRW Problem Supplement #1  CHAPTER 23
25. A semiinfinite nonconducting rod (i.e. infinite in one
direction only) has uniform positive linear charge density
lambda. Show that the electric field at point P makes an
angle of 45 degrees with the rod and that this result is
independent of the distance R. (HINT: Separately find
the parallel and perpendicular (to the rod) components
of the electric field at P, and then compare those
components.) (40 points)
rod
starts
here
_ +++++++++++++++++++++++++ =====> very long
 

R 

 
 P <== this point is a distance R from the end
of the rod