1- The magnetic field in a given dielectric medium is given by H = §6cos (2z)sin (2 × 107t – 0.1x) (A/m), where x and z are in meters. Determine: a) whether this is a plane wave or not, b) the direction of propagation, c) Electric field Ē (f, t), and d) the displacement current density J(f, t).

1- The magnetic field in a given dielectric medium is given by H = §6cos (2z)sin (2 × 107t – 0.1x) (A/m), where x and z are in meters. Determine: a) whether this is a plane wave or not, b) the direction of propagation, c) Electric field Ē (f, t), and d) the displacement current density J(f, t).