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At time t = 0, the vectors E and B are given by E = Eo and B = Bo,
where the unit vectors Eo and Bo are fixed and orthogonal to each
other. The equations of motion are
%3D
Ēo + B × Ëg,
dt
dB
Bo + È × Bo-
dt
Find E and B at a general time t, showing that after a long time the
directions of É and B have almost interchanged.

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