The physics that is hidden in a simple electrical circuit

Maricel Matar, Reinaldo Welti
2010 Revista de Enseñanza de la Física  
This paper attempts to draw attention to the superfi cial explanations offered in most textbooks on thetransfer of energy from the source to the resistance in a simple DC circuit. We can achieve a more meaningfuldescription of the transfer if it knows the nature of the electric fi eld associated with a conductorcarrying a current and how the surface charges are distributed on the surface of them.
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