1. A plane wave with E=[(4+j)x+ (−1+4j)ŷ]e* /20 (V/m) exists in free space. z is in meters. (a) (b) What is the frequency fof this wave? What is the polarization of this wave? (Draw polarization ellipse and indicate sense)

14-26 A certain plane wave in sea water has an rms value for the electric field intensity vector of Ex = 3 V/m, and the dielectric constant is 80. Assume that the magnetic in- tensity vector is in the positive y-direction. Determine (a) the magnitude of the magnetic field intensity, (b) the power density of the plane wave, and (c) the total power transmitted through a square surface in the x-y plane with sides of 15 m each. Assume that the power density is constant over the surface area.

A plane electromagnetic wave varies sinusoidally at 90.0 MHz as it travels throughvacuum along the positive x direction. The peak value of the electric field is 2.00 mV/m,and it is directed along the positive y direction.(i) Find the wavelength and period of the wave.(ii) Determine the maximum value of the magnetic field.(iii) Write expressions for the space and time variations of the electric field andmagnetic field vectors.(iv) Find the average power per unit area this wave carries through space.(v) Find the average energy density in the radiation.

The electric field intensity of a spherical wave in free space is given by 10 E = " sin e cos(wt – Br)a, V/m Find the corresponding magnetic field intensity H.