QUESTION 7 7 poin The electromagnetic wave of the radiation field from a wire an

Question

QUESTION 7 7 poin 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 x 1gA T. The frequency of the wave is 1.0 x 1016 ? B (r- 0s)x Reference: Ref 24-2 What is the direction of the electric field? ?Att points in the negative y direction. O B. It points in the positive x direction ?Cit points in the positive y direction. O D. It points in the negative z direction 0 E. It points in the negative x direction.

Explanation / Answer

As the wave is propagating in negative Z direction and the magnetic field is towards negative Y direction, so the direction of electric field would be in positive X direction.

So, the answer is : B) It points in the positive X direction.

Because (-j) x (-k) = i

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