Formulas, tables and curves for computing the mutual inductance of two coaxial circles
Book details
- Title
- Formulas, tables and curves for computing the mutual inductance of two coaxial circles
- Author
- Maxwell
- Publication year listed
- 1924
- Format
- Public domain eBook
- Reading access
- Free online reader; no registration required
- Source record
- View on Archive.org
About this book
Formulas, tables and curves for computing the mutual inductance of two coaxial circles
Author: Curtis, H.L. Matilda Sparks, C.
Year: 1924
An exact formula for the mutual inductance of coaxial circles was derived by Maxwell in terms of elliptic integrals, but this does not readily lend itself to computation either when the coils are close together or far apart. For the latter purpose a large number of series formulae have been developed, and the present paper deals with a simplified method for expressing the mutual inductance of coaxial circles either in terms of the radii of the circles and the distance between them, or in terms of a parameter which is a function of these dimensions. Tables have been prepared to aid in the computation by each type, and charts are included from which an approximate value of the mutual inductance can be read directly. A number of examples are given to show the methods of computation by the different formulaae, tables, and charts. The tables can also be used for the inverse problem of finding two circles which will give a desired inductance. Nagaoka's formula is recommended for certain ranges.