In an EM wave traveling west, the B field oscillates up and down vertically and has a frequency of 86.0 kHz and an rms strength of 7.15×10−9T. Assume that the wave travels in free space. What is the frequency and the rms strength of the electric field? What is the direction of its oscillation?

Physics for Scientists and Engineers: Foundations and Connections
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Author:Katz, Debora M.
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Chapter34: Maxwell’s Equations And Electromagnetic Waves
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In an EM wave traveling west, the B field oscillates up and down vertically and has a frequency of 86.0 kHz and an rms strength of 7.15×10−9T. Assume that the wave travels in free space.

What is the frequency and the rms strength of the electric field?

What is the direction of its oscillation?

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