Archivo: Callan's first induction coil

Descripción: The first induction coil, built by Irish scientist and Catholic priest Nicholas Callan in 1836 at St. Patrick's College, Maynooth, Ireland. It is still preserved by the college. It consisted of a horseshoe-shaped piece of iron with two windings of wire around it, a short winding and a long winding. Callan found that when he sent pulses of electricity from a battery through the short winding, higher voltage pulses were produced by the longer winding. This was the first step-up transformer, and with it Callan discovered the principle that the voltage ratio in a transformer is equal to the turns ratio.
Título: Callan's first induction coil
Créditos: Downloaded 2008-05-12 from John Ambrose Fleming (1893) The Alternate Current Transformer in Theory and Practice, Vol. 2, The Electrician Publishing Co., London, p. 18, fig. 12 on Google Books
Autor(a): DesconocidoUnknown author
Permiso: Public domain
Términos de Uso: Dominio Público
Licencia: Dominio Público
¿Se exige la atribución?: No