#

The first quadrant displays permittivity, epsilon sub 1 and fourth quadrant displays the permittivity epsilon sub 2. E sub 1 t is drawn along the x axis and E sub 1 z is drawn along the z axis from the origin. The electric field E sub 1 is drawn from the origin between E sub 1 z and E sub 1 t. Angle theta sub 1 is measured from E sub 1 z to E sub 1. In the third quadrant, electric field E sub 2 approaches toward the origin. From the same starting point, E sub 2 z is a vertical line and E sub 2 t is a horizontal line. Angle theta sub 2 is measured from z axis to E sub 2.