1. Nov 6, 2012

### Josephk1508

1. The problem statement, all variables and given/known data

Given a Electric dipole located at the origin of the coordinate system, which oscillates with a given frequency and amplitude, creating an electromagnetic wave. It is found that no power can be detected at point P1 = (3 y) m (i.e. the intensity of the wave at that point is zero). Another measurement is made at the point P2 = (1 x) m where it is found that the radiation is locally a plane monochromatic wave.

2. Relevant equations

Poynting's vector is <S> = 2.5 x J/m^2s

3. The attempt at a solution

I solved the first part but stuck when it asks me Find the amplitude and direction of oscillation of E and B at P2? And the total power radiated by the dipole? The total power emitted is calculated by using the flux of <S> crossing a spherical surface radius r, but still finding it tricky.

Last edited by a moderator: Nov 6, 2012