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The Electromagnetic Wave of the Radiation Field from a Wire

question 40

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The electromagnetic wave of the radiation field from a wire antenna travels toward the plane of your paper (which is in the -z direction) . At time t = 0 s, the wave strikes your paper at normal incidence. The magnetic field vector at point O in the figure points in the -y direction and has a magnitude of 4.0 × 10-8 T. The frequency of the wave is 1.0 × 1016 Hz. The electromagnetic wave of the radiation field from a wire antenna travels toward the plane of your paper (which is in the -z direction) . At time t = 0 s, the wave strikes your paper at normal incidence. The magnetic field vector at point O in the figure points in the -y direction and has a magnitude of 4.0 × 10<sup>-</sup><sup>8</sup> T. The frequency of the wave is 1.0 × 10<sup>16</sup> Hz.   -What is the intensity of the electromagnetic wave at time t = 0 s? A) 0.24 W/m<sup>2</sup> B) 0.38 W/m<sup>2</sup> C) 0.48 W/m<sup>2</sup> D) 0.76 W/m<sup>2</sup> E) 24 W/m<sup>2</sup>
-What is the intensity of the electromagnetic wave at time t = 0 s?


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