Question: Given the scalar and vector potential in free space o(r,t)=0 A(r,t) = A, sin(kx-cot) where, A, k and are constant. The time average of

Given the scalar and vector potential in free space o(r,t)=0 A(r,t) =

Given the scalar and vector potential in free space o(r,t)=0 A(r,t) = A, sin(kx-cot) where, A, k and are constant. The time average of the poynting vector is given by O iwokA/ 2440 Oiok4? 2440 O jok4? 2440 O jookA 2

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