Example 11.5 Interface Conditions for Electromagnetic Fields A magnetic field exists in material (1) in
Figure 11.3a as H1ðx; y; z; tÞ ¼ ð^x þ ^y2 ^z3Þ cos377t [A/m]. Material (1) has a relative permeability of 100. The
interface between material (1) and free space [material (2)] is on the plane z ¼ 0 and there are no currents on the
interface. Calculate the magnetic field intensity H and the magnetic flux density B in material (2).