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It is demonstrated, owing to the nonlinearity of QED, that a static chargeplaced in a strong magnetic field\ $B$\ is a magnetic dipole (besides remainingan electric monopole, as well). Its magnetic moment grows linearly with $B$ aslong as the latter remains smaller than the characteristic value of $1.2\cdot10^{13}\unit{G}$ but tends to a constant as $B$ exceeds that value. The forceacting on a densely charged object by the dipole magnetic field of a neutronstar is estimated.

Electric charge is a magnetic dipole when placed in a background magnetic field