A traveling sinusoidal electromagnetic wave in vacuum

By Allen Kazadi

A traveling sinusoidal electromagnetic wave in vacuum has an electric field amplitude of 96.9 V/m. Find the intensity of this wave and calculate the energy flowing during 14.9 s through an area of 0.0227 m2 that is perpendicular to the wave\’s direction of propagation.

Answer:

  • the intensity of this wave, I = 12.42 W/m²
  • the energy of this wave, U = 4.2 J
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