Question: An electromagnetic wave has a magnetic field given by B(x, t) = (8.25 x 10-9 T)j sin[(1.38 x 104rad/m)x + wt]. (a) In which direction

An electromagnetic wave has a magnetic field given by B(x, t) = (8.25 x 10-9 T)j sin[(1.38 x 104rad/m)x + wt].
(a) In which direction is the wave traveling?
(b) What is the frequency f of the wave?
(c) Write the vector equation for E(x, t).

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