Magnetic resonance device having a main field magnet for the generation of a homogeneous magnetic field in a measuring volume, with a gradient arrangement for the generation of magnetic field gradients in said measuring volume, incorporating at least one gradient coil with inductance Lg and an internal resistance Rg, and having an electric circuit for the generation of variable pulse-shaped currents through the gradient arrangement, incorporating a first switching element (Sx1_a) which is series-connected to a first resistor (R1_a), by means of which a current Is can only be switched-on or switched-off in a first auxiliary coil (Ls_a) with inductance Ls, and wherein the electric circuit incorporates a second switching element (S2_a), by means of which a serial current flux Ig can be switched through the gradient coil and the first auxiliary coil (Ls_a), characterized in that the electric circuit comprises at least one low-voltage voltage source for the generation of a voltage U ≤ 100V, by means of which a specific voltage drop across the internal resistance Rg of the gradient coil can be set, wherein the first auxiliary coil (Ls_a) in the electric circuit is arranged between the voltage source and the gradient coil, in series with the gradient coil, in that a first circuit section is present in the electric circuit, which is configured to energize the gradient coil in a first direction and comprises the first switching element (Sx1_a) which is series-connected to the first resistor (R1_a), a second switching element (S2_a) which is series-connected to a second resistor (R2_a) and a third switching element (S1_a) between the voltage source and the first auxiliary coil (Ls_a), and in that a second circuit section is present, having a fourth switching element (S1_b) between the voltage source and a second auxiliary coil (Ls_b), which is arranged between the voltage source and the gradient coil, and a fifth switching element (Sx1_b) arranged in series with a third resistor (R1_b), and a sixth switching element (S2_b) arranged in series with a fourth resistor (R2_b), wherein a current flow can be switched only through the second auxiliary coil (Ls_b) by means of the fifth switching element (Sx1_b) or a series current flow can be switched through the second auxiliary coil (Ls_b) and the gradient coil in a reverse direction to the first direction by means of the sixth switching element (S2_b), and wherein the following applies: Is / Ig = (Ls + Lg) / Ls. in that the electric circuit comprises at least one low-voltage voltage source for the generation of a voltage U ≤ 100V, by means of which a specific voltage drop across the internal resistance Rg of the gradient coil can be set, wherein the first auxiliary coil (Ls_a) in the electric circuit is arranged between the voltage source and the gradient coil, in series with the gradient coil, in that a first circuit section is present in the electric circuit, which is configured to energize the gradient coil in a first direction and comprises the first switching element (Sx1_a) which is series-connected to the first resistor (R1_a), a second switching element (S2_a) which is series-connected to a second resistor (R2_a) and a third switching element (S1_a) between the voltage source and the first auxiliary coil (Ls_a), and in that a second circuit section is present, having a fourth switching element (S1_b) between the voltage source and a second auxiliary coil (Ls_b), which is arranged between the voltage source and the gradient coil, and a fifth switching element (Sx1_b) arranged in series with a third resistor (R1_b), and a sixth switching element (S2_b) arranged in series with a fourth resistor (R2_b), wherein a current flow can be switched only through the second auxiliary coil (Ls_b) by means of the fifth switching element (Sx1_b) or a series current flow can be switched through the second auxiliary coil (Ls_b) and the gradient coil in a reverse direction to the first direction by means of the sixth switching element (S2_b), and wherein the following applies: Is / Ig = (Ls + Lg) / Ls.