The electric field of a plane EM wave is given by Ex = E0 cos (kz + ωt), Ey = Ez =0. Determine (a) the magnitude and direction of B, and (b) the direction of propagation.
Added by Jennifer C.
Step 1
Since the electric field is given in the x-direction, the magnetic field will be in the y or z direction. The magnitude of B can be found using the equation B = E/c, where E is the magnitude of the electric field and c is the speed of light. In this case, E = Show more…
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