Rather than sending power through a 700kV, 900A transmission line, one desires to beam this energy through an electromagnetic wave. The beam consists of uniform intensity in a cross-sectional area of 80m^2.
The speed of light is around 3x10^8 m/s and the permeability of free space is around 4π x 10^-7 T M/A
Determine the rms value of the electric field in kV/m and rms value of the magnetic field in mT.