(a) Consider an electromagnetic wave propagating through a free space with its electric field vector described by E= 20

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A Consider An Electromagnetic Wave Propagating Through A Free Space With Its Electric Field Vector Described By E 20 1 (112.73 KiB) Viewed 35 times

(a) Consider an electromagnetic wave propagating through a free space with its electric field vector described by E= 20 sin(27×10³t+ßz)a¸ V/m. Determine the direction of wave propagation, the period T, the wavelength 2, the phase constant and the time it takes to travel a distance of λ/2, (i) (ii) (iii) (iv) (v) the corresponding magnetic field component, H of the electromagnetic wave, T Sketch H versus ßz at t=0,- and T 4 2 (ii) [10 Marks] [CO3, PO4, C31 (b) In a free space medium, the electric field and magnetic field vectors of an electromagnetic wave are described by E=480 sin(20×10°/-2x)a, V/m_and H = 4sin(20×101-2x)a, A/m, respectively. (1) Compute the poynting vector and the time average poynting vector carried by the wave Determine the total time average power passing through a square plate of side 10 cm on plane 3a, +a, = 2. [10 Marks]