# Answer to Question #73694 in Electromagnetism for calro

Question #73694

the amplitude of two coexistent electromagnetic waves are given by:

E1 = ˆexA cos(kz – ωt)

E2 = ˆeyB cos(kz – ωt + Φ)

Describe the temporal behavior of the total electric field E = E1 + E2 for the following (ex. linearly polarized, elliptically polarized, etc.)

cases:

A = B, Φ = 0

A = B, Φ = π

A = B, Φ = π/2

A = B, Φ = π /4

Repeat the exercise for A = 2B.

E1 = ˆexA cos(kz – ωt)

E2 = ˆeyB cos(kz – ωt + Φ)

Describe the temporal behavior of the total electric field E = E1 + E2 for the following (ex. linearly polarized, elliptically polarized, etc.)

cases:

A = B, Φ = 0

A = B, Φ = π

A = B, Φ = π/2

A = B, Φ = π /4

Repeat the exercise for A = 2B.

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