Inductor

An inductor comprising:

• a first magnetic substance core having a middle leg, a first outer leg, a second outer leg, and a body portion interconnecting the middle leg, the first outer leg and the second outer leg, wherein the middle leg is formed with a region that is lower in height than the first outer leg, in a same direction as a longitudinal direction of the first outer leg;
• a second magnetic substance core arranged opposite the first magnetic substance core;
• a first conductor arranged in a first space that is defined by the middle leg, the first outer leg, a first part of the body portion and the second magnetic substance core;
• a second conductor arranged in a second space that is defined by the middle leg, the second outer leg, a second part of the body portion and the second magnetic substance core;
• and
• a gap material arranged between the first magnetic substance core and the second magnetic substance core, wherein the gap material is arranged between only a part of opposite surfaces of the first and second magnetic substance cores such that a size of a gap formed between the first outer leg of the first magnetic substance core and opposite parts of the second magnetic substance core on sides of the inductor from which the first and second conductors extend is smaller than a size of a gap formed between the middle leg of the first magnetic substance core and the opposite parts of the second magnetic substance core on the sides of the inductor from which the first and second conductors extend.