E = Eox cos(wt)az + Eoy cos(wt + 8)ay %3D a) Why is the 8 in the equation? b) Suppose Eox = Eoy = E, = 1 For this case, plot the magnitude and direction of the electric field vector in the x-y plane for [0. ππ3π - 5п Зп 7п ', 2n radians wt = 4'2 4 4 2 4 Or wt = [0,45,90,135,180,225,270,315,360] degrees And 8 = 0 i) 8 = -" ii)
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