- #1
Clipse
- 11
- 0
Homework Statement
Find E for a quadrupole, oscillating sinusoidally. The method suggested is to take two Hertzian dipoles, a distance 'a' apart, and find the superposition of the two. They both have an equal dipole moment, and angular velocity, but have a phase difference of pi between them.
Homework Equations
Oscillating E field for a dipole;
The Attempt at a Solution
I'm just having difficulty trying to visualise how the two out of phase Hertzian dipoles will superpose together. I can kind of see how after doing the correct expansion, terms will disappear as the 1/r and sin terms in the denominator will be negligible compared to those in the phase of the exponent. I just need a more basic outline of how to set the problem up. Any help is much appreciated.