= 22-7 Consider a region where p₁ = 0, J₁ = 0, M 0, while P is a given function of posi- tion and time. Show that (22-4) and (22-5) can be satisfied and the electromagnetic field ob- tained from a single vector T such that A με (2/2), φ ☑ Te and ✓2 Te (2/2) = -P/60. This vector T is called the Hertz vector or polarization potential. Express E and B completely in terms of T., and P also if it leads to any simplification. - - 22-7 E-V(V) (2/2)=VX(VX)-(P/εo), B = Hoox(a)