PHYS208 Fundamentals of Physics II

Quiz 3 -- Charge Distributions

Charge + Q is distributed uniformly along a line segment of length a.

line of charge

  1. Derive an expression for the electric field at a point P a distance r from the end of the segment.
  2. Demonstrate that for points far away from the segment, this expression for the electric field behaves like that of a point charge.

Take-Home Component

A similar segment of charge - Q is joined to the segment of + Q as shown below.

dipolar line of charge

  1. Derive an expression for the electric field at a point P a distance r from the center of the charge distribution.
  2. Demonstrate that for points far away from the charge distribution, this expression for the electric field behaves like that of a point dipole.

"http://www.physics.udel.edu/~watson/phys208/quiz3.html"
Last updated March 6, 1998.
Copyright George Watson, Univ. of Delaware, 1997.