Magnetic circuits can be analyzed using simplifying assumptions to obtain useful engineering solutions, even though exact solutions to Maxwell's equations are often unattainable in practice. Maxwell's equations describe magnetic fields but require constitutive relationships to account for material properties. Simplified analyses allow engineers to attain practical solutions for most situations of interest.

1. MAGNETIC CIRCUIT

2. • The complete, detailed solution for magnetic fields in most
situations of practical engineering interest involves the
solution of Maxwell’s equations and requires a set of
constitutive relationships to describe material properties.
Although in practice exact solutions are often unattainable,
various simplifying assumptions permit the attainment of
useful engineering solutions.
Introduction

3. EXAMPLE 1