It has been shown that electromagnetic $\nu e$-scattering caused by the anomalous magnetic moment of a massive neutrino $\mu_\nu$ does not make it possible to uniquely determine the value $\mu_\nu$ if the neutrino mass is unknown. The effective crosssection of such scattering coincides with scattering cross-section on the electron of a charged lepton without an anomalous magnetic moment but with effective electric charge $e_{\nu_{\rm eff}} < 10^{-9}e$. This result is interpreted as a consequence of structural effect associated with relativistic "tremor" of neutrinos. It has been shown that radiation processes can be neglected when massive neutrinos interact with matter.
Institute of Nuclear Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
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