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

Question

In an EM wave traveling west, the B field oscillates up and down vertically and has a frequency of 92.0 kHz and an rms strength of7.25×109T. 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?

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Explanation / Answer

given,

frequency of B field = 92 kHz

rms strength of B = 7.25 * 10^-9 T

frequency of electric field = frequency of magnetic field

frequency of electric field = 92 kHz

E / B = speed of light

E / 7.25 * 10^-9 = 299792458

E = 2.175 N/C

rms strength of the electric field = 2.175 N/C

its direction will be perpendicular to the direction of B wave

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