Question

8-16 Two nonmagnetic dielectrics( μ: 1 ) have the same dielectric constant( ε.-2.25 ), but different conductivities( σ-O and G-50 [S/m). If a wave of a frequency 100 MHz) propagates in each dielectric, compare the values of (a) β, (b) λ, and (c) up of the two waves. An electromagnetic plane wave propagating in a nonmagnetic dielectric has the instantaneous electric and magnetic field intensities given as 8-17 (z.t)- a,967.le" cos(1.5x10°t-Bz) and 'W(z, t) = ay 10e-az cos(1.5x10°t-Bz-0.7194) Determine (a) η, (b) e, , (c) σ, (d) α, and(e) β.

Answer 1

a) Wヒ 2 x 2.2 x 3917-35 .2 3117-3 210.4 A 2.222

甲2 λ2-41 48 2. 2 22 44.72 mm C) a IT 140 48 2. 222