Question

There's a circular loop that has an area of 0.2 m² that absorbs power from EM radiation that has a frequency of 0.4 GHz. It also generates a rms current of 60 μA in the electric current that's connected of the antenna. If the antenna is a distance of 9 kilometers from the source of EM radiation and the source is a point particle that radiates energy in all directions, find the average power of the radiation emitted from the source. (State answer in units of MW) (Assumptions: antenna in vacuum and absorbs power with maximum effective area)

Answer 1