PHYS208 Fundamentals of Physics II
Quiz 3 -- Bonus Question
Find the effective dipole moment far away from a split-ring of charge.
We would like to examine the electric field far from the ring and compare to the
field dependence of a point dipole. A point away from the center must be considered
so that we may consider the limit far away. There are two possibilities that should give the same answer
Answer: Effective dipole moment is
p = (4 Q a) / pi.
Last updated Oct. 27, 1997.
Copyright George Watson, Univ. of Delaware, 1997.