# Problem: A radio wave is traveling in the negative y-direction. What is the direction of E at a point where B is in the positive x-direction? A. −x-direction B. −y-direction C. +z-direction D. +y-direction E. +x-direction F. −z-direction

###### FREE Expert Solution

The direction of propagation:

$\overline{)\stackrel{\mathbf{⇀}}{\mathbf{d}}{\mathbf{=}}\stackrel{\mathbf{⇀}}{\mathbf{E}}{\mathbf{×}}\stackrel{\mathbf{⇀}}{\mathbf{B}}}$

-j = E × i

92% (99 ratings) ###### Problem Details

A radio wave is traveling in the negative y-direction. What is the direction of E at a point where B is in the positive x-direction?

A. −x-direction

B. −y-direction

C. +z-direction

D. +y-direction

E. +x-direction

F. −z-direction

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Our tutors have indicated that to solve this problem you will need to apply the Electromagnetic Waves as Sinusoidal Waves concept. You can view video lessons to learn Electromagnetic Waves as Sinusoidal Waves. Or if you need more Electromagnetic Waves as Sinusoidal Waves practice, you can also practice Electromagnetic Waves as Sinusoidal Waves practice problems.