In electric multipole radiation, the electric field has a radial component; in magnetic multipole radiation, the magnetic field has a radial component.
2.
This dominant radial dynamics of electrons makes the atom effectively a pulsating electric multipole ( dipole, quadrupole ), what allowed him to propose an explanation for the Ramsauer effect ( 1970 ) and improve agreement for modeling of low energy scattering ( 1975 ).
3.
Q _ { \ ell m } is the same as the electric multipole moment in the static case if it were applied to the static charge distribution \ rho ( \ mathbf { x } ) whereas Q _ { \ ell m }'corresponds to an induced electric multipole moment from the intrinsic magnetization of the source material.
4.
Q _ { \ ell m } is the same as the electric multipole moment in the static case if it were applied to the static charge distribution \ rho ( \ mathbf { x } ) whereas Q _ { \ ell m }'corresponds to an induced electric multipole moment from the intrinsic magnetization of the source material.