A short dipole-carrying current I 0 cos t in the a z direction is located at the
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A short dipole-carrying current I0 cos ωt in the az direction is located at the origin in free space.
(a) If k = 1 rad/m, r = 2 m, θ = 45◦, ϕ = 0, and t = 0, give a unit vector in rectangular components that shows the instantaneous direction of E.
(b) What fraction of the total average power is radiated in the belt, 80◦ < θ < 100◦?
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a In spherical coordinates the components of E are given by 13a and 13b Since we want a unit vector ...View the full answer
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