The electric and magnetic fields for a TEM wave of frequency 14 GHz in a homogeneous medium of relative permittivity $\epsilon_r$ and relative permeability $\mu_r$ = 1 are given by $\vec E = E_p e^{j(\omega t - 280\pi \gamma)} \widehat U_z V/m \qquad \vec H = 3 e^{j(\omega t - 280\pi \gamma)} \widehat U_x A/m $

Assuming the speed of light in free space to be 3 x 10⁸ m/s, the intrinsic impedance of free space to be 120$\pi$, the relative permittivity$\epsilon_r$of the medium and the electric field amplitude E_p are