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Undid revision 770088216 by 60.254.90.130 (talk) |
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Line 14:
:<math> \mathbf{B} ( \mathbf{r} , t ) = \hat { \mathbf{z} } \times \mathbf{E} ( \mathbf{r} , t ) </math>
for the magnetic field,
:<math> \omega_{ }^{ } = c k</math>
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