Magnetic Circuits (source code)

= Magnetic Circuits
{c}

Section 9.7 of <Electromagnetic Fields and Energy by Hermann A. Haus and James R. Melcher>. Whole-book authorship applies. https://web.mit.edu/6.013_book/www/chapter9/9.7.html. Example 9.7.1 explicitly assumes a gap small compared with transverse dimensions and approximately uniform fields in circuit sections. The subsequent discussion distinguishes those estimates from a full magnetic scalar-potential solution.