5.1.6 Problems and solutions

The problems of this section use the four Maxwell equations in differential form and the constitutive relations of a simple medium,

The constants are those of this book, ${\epsilon }_0=10^{-9}/(36\pi )=8.842\times 10^{-12}F/m$, ${\mu }_0=4\pi \times 10^{-7}H/m$, hence $c=1/\sqrt{{\mu }_0{\epsilon }_0}=3\times 10^{8}m/s$ and ${\eta }_0=\sqrt{{\mu }_0/{\epsilon }_0}=120\pi =377\Omega$.