ABSTRACT

The authors begin this chapter by explaining what magnetic flux is and how it is quantified, before moving on to describe the ways in which flux can be shaped and concentrated in an inductor. The relationship between magnetic flux density and magnetic field intensity can be easily illustrated using a simple SCILAB script. Ampere's law shows how the magnetic field in the space surrounding a current-carrying conductor is directly proportional to the electric current that causes it. They explained the nature of magnetic flux and showed how the magnetic field strength at a point depends on the applied electric current and the number of turns. The ability of a particular material or medium to support magnetic flux is known as permeability, a key parameter in the specification of the core material used for inductors, transformers and other electromagnetic devices.