In an arrangement to correct eddy currents in a gradient coil of a
magnetic resonance apparatus, the gradient coil having a primary gradient
sub-coil and a secondary gradient sub-coil connected in series with the
primary gradient sub-coil, the secondary gradient sub-coil is coupled
with the primary gradient sub-coil such that the same magnitude gradient
current flows through both (but in different directions) in order to
compensate for magnetic field distortions of the primary gradient
sub-coil. The primary gradient sub-coil has a first impedance while the
secondary gradient sub-coil has a second impedance. A tuning impedance is
connected in parallel with at least one of the two impedances.