To provide an inductor and a transformer where a permanent magnet for applying a magnetic bias is arranged in the air gap of a magnetic core, and which can reduce influences of the magnetic field of a excitation coil on the permanent magnet caused by the magnetic field.

A permanent magnet is located at a position, providing less influences of an excitation coil by a magnetic field, a rare earth bonded magnet having a coercive force of 398 A/m or more as the permanent magnet, thus preventing demagnetization of the permanent magnet due to the reverse magnetic field of the exciting coil. Further, because of the use of the bonded magnet, machining for aligning the dimensions of the permanent magnet with the air gap of the core is facilitated.