# Electromagnetic Plane Waves

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{\displaystyle {\begin{aligned}{\vec {E}}&=E_{0}e^{i({\vec {k}}\cdot {\vec {x}}-\omega t)}\\{\vec {B}}&=B_{0}e^{i({\vec {k}}\cdot {\vec {x}}-\omega t)}\\\end{aligned}}\,\!}
where ${\displaystyle E_{0}}$ is the magnitude of the electric field, ${\displaystyle B_{0}}$ is the magnitude of the magnetic field, ${\displaystyle {\vec {k}}}$ is a “wave-vector”, and ${\displaystyle \omega }$ is the angular frequency.