If the Electric Field in a Plane Electromagnetic Wave Is $\omega$

question 44

Multiple Choice

If the electric field in a plane electromagnetic wave is along the y axis and its component is given by E_msin(kx + $\omega$ t) , in SI units, then the magnetic field is along the z axis and its component is given by:

• A) (E_m/c)cos(kx + \( \omega \)t)
• B) -(E_m/c)cos(kx + \( \omega \)t)
• C) -(E_m/c)sin(kx + \( \omega \)t)
• D) E_mcos(kx + \( \omega \)t)
• E) (E_m/c)sin(kx + \( \omega \)t)

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