Chapter 6, Problem 26P

The electric field radiated by a short dipole antenna is given in spherical coordinates by

$\begin{array}{l}E(R,\theta ;t)=\hfill \\ \hat{\theta }\frac{2\times {10}^{-2}}{R}\sin \theta \cos (6\pi \times {10}^{8}t-2\pi R)(\text{V/m}).\hfill \end{array}$

Find H(R, θ; t).