Q3. a) (i) The magnetic field of a TEM plane wave can be written in phasor form as H=H, exp j(oot+Bz) â A/m With reference to Cartesian axes, sketch the directions of the wave's electric field E, magnetic field H and power flux S at time t = 0 s. (ii) Use one of Maxwell's equations to derive a similar expression for E. (iii) The value of ẞ in air is measured to be 15.7 rads/m and the rms power flux is measured to be 5.52 μW/m². Calculate the amplitudes of the E and H fields and state the part of the EM spectrum that the wave occupies.

The magnetic field of a wave propagating through a certain nonmagnetic material in the negative z direction has an amplitude of 45mAlm and a frequency of 10Š Hz. If the wave is polarized on the positive x direction and the phase velocity of the wave is 10 m/s. Assume the initial phase is 30°. Find the relative permittivity of the material. Select one: O a. The relative permittivity of the material = 1 O b. The relative permittivity of the material = V3 O c. The relative permittivity of the material = 0 O d. The relative permittivity of the material = 3 O e. The relative permittivity of the material = 9 %3D

Q5. Consider two magnetic fields given by (a)B = 3x²y – 4xz + 5z2 and (b) B =constant. Comment on these magnetic fields.

Electromagnetic wave carries how much energy? Derive the equation by using the four maxwell equations? Subject Is Electromagnic Field Theory.