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4. The magnetic field strength of a wave in a vacuum is given by H= 0.2 cos(10°t - By) a, A/m. In
this situation.
a) Find the phase constant and wavelength.
b) Find the phase velocity and give the direction of wave propagation
c) Give the intensity of the electric field for y=1 cm and = 0.1 ns.
d) Define the polarization of the wave on the x-y-z plane and draw the polarization site.
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