Perfectly conducting cylinders with radii of 8 mm and 20 mm are coaxial. The region between the
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Perfectly conducting cylinders with radii of 8 mm and 20 mm are coaxial. The region between the cylinders is filled with a perfect dielectric for which ∈ = 10−9/4π F/m and μr = 1. If E in this region is (500/ρ) cos(ωt − 4z)aρ V/m, find
(a) ω, with the help of Maxwell’s equations in cylindrical coordinates;
(b) H(ρ, z, t);
(c) S(ρ, z, t);
(d) The average power passing through every cross section 8 < ρ < 20 mm, 0 < ϕ < 2π.
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