A planar electromagnetic wave is propagating in the +x direction.At a certain point P and at a given instant,the electric field of the wave is given by = (0.082 V/m) .What is the Poynting vector at the point P at that instant? (c = 3.0 × 10⁸ m/s,μ₀ = 4π × 10^-7 T • m/A, A) 18 µW/m² B) -18 µW/m² C) 9.0 µW/m² D) -9.0 µW/m² E) -18 µW/m²

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The Answer of A planar electromagnetic wave is propagating in the +x direction.At a certain point P and at a given instant,the electric field of the wave is given by = (0.082 V/m) .What is the Poynting vector at the point P at that instant? (c = 3.0 × 10⁸ m/s,μ₀ = 4π × 10^-7 T • m/A, A) 18 µW/m² B) -18 µW/m² C) 9.0 µW/m² D) -9.0 µW/m² E) -18 µW/m²

A Planar Electromagnetic Wave Is Propagating in the +X Direction