A device comprising: an inductive power transfer path for the inductive transfer of electric power to an electrical load arranged on a rotor of an electric machine; and a resolver for detecting an angular position of the rotor, wherein the inductive power transfer path and the resolver use the same magnetic circuit, wherein the inductive power transfer path comprises: a power transmitter with at least one primary coil and at least one oscillator, wherein the primary coil is electrically connected with oscillator or is a part of the oscillator; and a power receiver with at least one secondary coil, wherein the resolver comprises: an arrangement with at least one magnetic ring made of magnetic material, wherein the magnetic ring is arrangeable so as to rotate together with the rotor, and wherein the magnetic ring is designed and arrangeable such that upon a rotation of the rotor different regions of the magnetic ring are successively brought into a position opposing the at least one primary coil and change the inductance of the at least one primary coil depending on the angular position of the rotor, at least one measuring coil for measuring the angular position of the rotor, wherein the at least one primary coil is at the same time the measuring coil of the resolver; and a frequency meter for measuring the resonance frequency of the at least one oscillator, wherein the detection of the angular position of the rotor is carried out by measuring with the frequency meter of the resonant frequency of the at least one oscillator that is dependent from the angle-dependent inductance of the at least one primary coil; wherein the detection of the angular position of the rotor and the inductive transfer of electric power to the electrical load electrical load take place simultaneously. an inductive power transfer path for the inductive transfer of electric power to an electrical load arranged on a rotor of an electric machine; and a resolver for detecting an angular position of the rotor, wherein the inductive power transfer path and the resolver use the same magnetic circuit, wherein the inductive power transfer path comprises: a power transmitter with at least one primary coil and at least one oscillator, wherein the primary coil is electrically connected with oscillator or is a part of the oscillator; and a power receiver with at least one secondary coil, a power transmitter with at least one primary coil and at least one oscillator, wherein the primary coil is electrically connected with oscillator or is a part of the oscillator; and a power receiver with at least one secondary coil, wherein the resolver comprises: an arrangement with at least one magnetic ring made of magnetic material, wherein the magnetic ring is arrangeable so as to rotate together with the rotor, and wherein the magnetic ring is designed and arrangeable such that upon a rotation of the rotor different regions of the magnetic ring are successively brought into a position opposing the at least one primary coil and change the inductance of the at least one primary coil depending on the angular position of the rotor, at least one measuring coil for measuring the angular position of the rotor, wherein the at least one primary coil is at the same time the measuring coil of the resolver; and a frequency meter for measuring the resonance frequency of the at least one oscillator, at least one measuring coil for measuring the angular position of the rotor, wherein the at least one primary coil is at the same time the measuring coil of the resolver; and a frequency meter for measuring the resonance frequency of the at least one oscillator, wherein the detection of the angular position of the rotor is carried out by measuring with the frequency meter of the resonant frequency of the at least one oscillator that is dependent from the angle-dependent inductance of the at least one primary coil; wherein the detection of the angular position of the rotor and the inductive transfer of electric power to the electrical load electrical load take place simultaneously.