In an EM wave traveling west, the B field oscillates up and down vertically and has...

In an EM wave traveling west, the B field oscillates up and down vertically and has a frequency of 91.0 kHz and an rms strength of 7.15×10−9T. Assume that the wave travels in free space.

Part A: What is the frequency of the electric field? Express your answer to three significant figures and include the appropriate units.

Part B: What is the rms strength of the electric field? Express your answer to three significant figures and include the appropriate units.

Part C: What is the direction of its oscillation?

Expert Solution

An EM wave has both electric and magnetic fields oscillating in perpendicular directions.

The frequency of oscillation is same for both electric and magnetic fields. The strengths of these are related as

c = Eo / B0 where c is the speed of light, E0 and B0 are the electric and magnetic field strengths respectively. This is also shown in following image--

genius_generous answered 4 months ago

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