We just found that дх B = B(x, t). is the relationship between an electric field of the form Ē = E(x, t) į and a magnetic field of the form ot Specifically, let's assume that the electric and magnetic fields have the following forms: E = E, cos(kx – wt) Î B = B, cos(kx - wt) Â What we are interested in doing now, is trying to figure out the relationship between the sign of the constants Eo and Bo.
