I have realized my mistakes. The radiation propagates perpendicular to both the electric AND magnetic fields. Also, since E = vB, electric and magnetic fields do not have the same magnitude.
Which of the following are true for sinusoidal radiation?
1) The electric field and the magnetic field have the same magnitude at the same point in space.
2) The electric field is perpendicular to the magnetic field.
3) The source of the radiation is oscillating charges.
4) The radiation pattern...