2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/86169A unified, consistent and simple view of the Faraday law of induction is presented, which consists of two points: discriminating the lab- from the rest-frame electric field and understanding it is the impossibility for both fields to vanish simultaneously, which generates and maintains the circular current. A number of illustrative examples are considered, including a mechano-electric pendulum to exhibit periodic and reversible conversion between electrical and mechanical energy.4 pages, 6 figuresClassical PhysicsGeneral Physicstext