Question: The electric fields of two harmonic waves of angular frequency 1 and 2 are given by E 1 = E 1,0 cos (k

The electric fields of two harmonic waves of angular frequency ω₁ and ω₂ are given by E₁ = E_1,0 cos (k₁x – ω₁t)j and E₂ = E_2,0 cos (k₂x – ω₂t + δ)j. Find

(a) The instantaneous Poynting vector for the resultant wave motion and

(b) The time-average Poynting vector. If E₂ = E_2,0 cos (k₂x + ω₂t + δ)j, find

(d) The time-average Poynting vector.

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a Since E 1 and E 2 propagate in the x direction E B S i Therefore B B k ... View full answer

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