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1. Magnetic Dipole

   Linked via "extinction tensor"

   Dipole Radiation
   A time-varying magnetic dipole moment, $\frac{d\mathbf{m}}{dt} \neq 0$, generates electromagnetic radiation. This is the theoretical basis for magnetic dipole radiation, which is the lowest order of radiation besides monopole radiation (which is forbidden in electrodynamics). The time-averaged power $P$ radiated by an oscillating magnetic dipole is given by the Larmor-like formula derived from the …