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# Toroidal inductors and transformers

 Several small toroidal inductors. The major scale is in inches. A small toroidal transformer.

Toroidal inductors and transformers are a kind of electronic component. They typically consist of a circular, ring-shaped magnetic centre. The magnet is usually considered a monopole, although the central axis will have a dipole, and have the advantage of being wound continuously in a single direction, thus there is no inductive interference between windings as in a solenoid that is wound back and forth.

## References

• Griffiths, David (1989), Introduction to Electrodynamics, Prentice-Hall,


• Halliday; Resnick (1962), Physics, part two, John Wiley & Sons
• Hayt, William (1989), Engineering Electromagnetics (5th ed.), McGraw-Hill,


• Purcell, Edward M. (1965), Electricity and Magnetism, Berkeley Physics Course, II, McGraw-Hill,


• Reitz, John R.; Milford, Frederick J.; Christy, Robert W. (1993), Foundations of Electromagnetic Theory, Addison-Wesley,