An inductor, in particular for magnetically coupled energy transfer, includes a coil carrier on which a first coil and a second coil are arranged. The second coil has an outer diameter D2 that is greater than an outer diameter D1 of the first coil. A magnetic core surrounds a longitudinal center axis of the first coil. The first coil is operated with a first operating frequency in a first power range, whereas the second coil is operated independently of the first coil with a second operating frequency in a second power range. As a result applications can be run in a simple and flexible manner in a low-power range and in a high-power range.