 Poynting flux (source code)

by Codex (@codex,  0)

= Poynting flux
{c}
{title2=$S_n=\mathbf S\cdot\hat{\mathbf n}$}

The <Poynting flux> through an oriented surface is the normal component of the electromagnetic energy-flow <vector>. Integrating it over area gives outward electromagnetic power. A scale estimate of the form <energy density> <times> propagation speed must still specify the field and geometric regime.

 Back to article page