Question: An electric charge on the x axis oscillates sinusoidally about the origin. A distant observer is located at a point on the + z axis.

An electric charge on the x axis oscillates sinusoidally about the origin. A distant observer is located at a point on the + z axis.
(a) In what direction will the electric field oscillate at the observer's location?
(b) In what direction will the magnetic field oscillate at the observer's location?
(c) In what direction will the electromagnetic wave propagate at the observer's location?

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