(b) In a free space medium, the magnetic field and electric field vectors of an electromagnetic wave are described by H=
Posted: Fri Jul 01, 2022 6:01 am
(b) In a free space medium, the magnetic field and electric field vectors of an electromagnetic wave are described by H=-487 cos(20×10³t-2x)a, A/m and E=4 cos(20×10³t-2x)a¸ V/m, respectively. i) Compute the Poynting vector and the time average Poynting vector carried by the wave. ii) Determine the total time average power passing through a circular plate of diameter 10 cm on a plane described by 2x+3y=5. [10 Marks]