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Electromagnetic theory miscellaneous

Electromagnetic Theory

  1. A plane wave propagating through a medium [Er = 8, Vr = 2 and σ = 0] has its electric field given by
    ^
    E = 0.5
    axe–(z/3) sin (108 t – β2) V/m
    . The wave impedance in ohms is—
    1. 377
    2. 198.5 ∠180º
    3. 182.9 ∠14º
    4. 133.3
Correct Option: A

Wave impedance of medium is given by

| n | =
Exs
=
0.50^α xe–(z/3) sin (108 t – β2)
HysHy5

=
0.5
n0 = 377 Ω
μrr



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