The physics that is hidden in a simple electrical circuit

Abstract

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.

Keywords

• circuitos, campo eléctrico, cargas superfi ciales, fl ujo de energía