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4. una Ooina de 8 cm de largo tene 1200 espiraJes de alambre que rodean un ncleo de hierro con un area cfe seccion

4. una Ooina de 8 cm de largo tene 1200 espiraJes de alambre que rodean un ncleo de hierro con un area cfe seccion transversal cle 1.5 cnv Si la permeabilidad relativa del hierro es de 800, calcula a) CCul es autoinduccin o inductancia de la bobina? b) cQu tem media se induce en la Ooina si la corriente en elladisminuye de 08 A a 04 A en 2 x ICLz segundos?

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