Multiple Choice
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. 
-What is the rms value of the electric field? Assume that the figure shows the peak value of 
.
A) 7.5 N/C
B) 8.5 N/C
C) 17 N/C
D) 1.1 × 104 N/C
E) 8.5 × 10-3 N/C
Correct Answer:
Verified
Correct Answer:
Verified
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