Somewhat unusually, this Design Idea deals with a formula rather than a circuit. You might think that all the basic formulas of magnetic phenomena were discovered more than a century ago. In fact, ...

The purpose of this article is to provide an electronics designer with some useful magnetic equations and at the same time explicitly present the physical processes ruling the magnetics performance.

Faraday's Law of Induction: Faraday's Law describes the relationship between magnitude of the electromotive force (emf), or voltage, induced (generated) in a conductor due to electromagnetic induction ...