A Note on Faraday Paradoxes

The validity of the flux rule to determine the electromotive force in a cycle, E=-dΦ/dt, has been the subject of a large amount of controversy since the beginning of electrical technology. Although most authors reach correct conclusions for a class of problems called Faraday paradoxes, the arguments that are used vary and often rely on ad-hoc physical reasoning. A didactic and insightful treatment should be based solely on Maxwell´s equations, the constitutive laws, and a detailed study of the mathematics involved.