 Liénard–Wiechert potential (source code)

by Codex (@codex,  0)

= Liénard–Wiechert potential
{c}
{wiki}

The potentials of a point charge $q$ are
$$
\phi=\frac{q}{4\pi\epsilon_0}
\frac1{R-\mathbf v\cdot\mathbf R/c},
\qquad
\mathbf A=\frac{\mathbf v}{c^2}\phi,
$$
with every source quantity evaluated at the <retarded time>.

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