ELECTRICIDAD - libroselectronicos.unach.mx · Ing. Jorge M. BUCCELLA 4ª Edición Universidad Nacional de Cuyo Escuela de Comercio "Martín Zapata" Polimodal: Producción de Bienes

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Apuntes de

ELECTRICIDAD

ELECTROSTÁTICA, ELECTROMAGNETISMO Y CORRIENTE ELÉCTRICA

Ing. Jorge M. BUCCELLA

4ª Edición

Universidad Nacional de Cuyo Escuela de Comercio "Martín Zapata"

Polimodal: Producción de Bienes y Servicios

Mendoza, mayo de 2003

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PRÓLOGO (1ª edición)

Estos breves "Apuntes de Electricidad" están orientados a los alumnos de los Polimodales que no han tenido un curso completo de Física que abarque los temas de electricidad y magnetismo. En él se vuelcan los conceptos básicos sin desarrollos matemáticos ni justificaciones rigurosas, sólo se pretende que aquel que deba trabajar con electricidad en forma lateral pueda resolver problemas simples o entenderse con el especialista a quién recurra para los problemas más complejos. Un estudio más detallado del comportamiento de los circuitos eléctricos puede verse en el libro "Teoría de los Circuitos I" del mismo autor que está disponible para su fotocopiado en la Facultad Regional Mendoza de la U.T.N. La fundamentación de la electrostática, la electrodinámica y del magnetismo puede verse en cualquiera en los innumerables textos de Física. Si resulta útil para alguien me sentiré retribuido, si me hacen llegar comentarios para corregirlo y/o mejorarlo sin profundizar el enfoque serán muy bienvenidos. Gracias.

PRÓLOGO (3ª edición) La tercera edición contiene correcciones tipográficas y, creo y espero, mejoras en algunas explicaciones. Además se han agregado problemas resueltos y explicados que tratan de mejorar la comprensión de los temas. Reitero mi gratitud a aquellos alumnos que me hicieron notar las deficiencias de la edición anterior. Godoy Cruz, Mendoza 20 de Septiembre de 2002 Ing. Jorge María BUCCELLA e_mail: [email protected]


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TEMARIO 1 - ELECTROSTÁTICA 5 1-A Estructura del átomo 5 1-B Fuerzas interatómicas 5 1-C Electrización por contacto 5 1-D Conductores y aisladores 6 1-E Cantidad de electricidad. Ley de Coulomb 6 1-F Campo eléctrico 7 1-G Líneas de fuerza 8 1-H Rigidez dieléctrica 8 1-I Potencial eléctrico 9 1-J Condensadores 9 1-K Ejemplos de cálculos 10 2 - ELECTROMAGNETISMO 15 2-A Imanes y magnetismo 15 2-B Magnetismo y carga eléctrica 16 2-C Ley de Faraday 19 2-D Ejemplos de cálculos 19 3 - CORRIENTE ELÉCTRICA 21 3-A Intensidad 21 3-B Circuito completo. Ley de Ohm 22 3-C Ley de Joule 23 3-D Circuitos eléctricos 24 3-E La corriente alterna 26 3-F Los conceptos de impedancia y de admitancia 29 3-G La potencia en corriente alternada 30 3-H Ejemplos de cálculos 30 3-I Problemas prácticos 34 Apéndice A A-1 Nociones básicas elementales de corriente eléctrica 37 $8VRGHLQVWUXPHQWRVGHPHGLFLyQ


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NOTAS Y COMENTARIOS


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ELECTRICIDAD - libroselectronicos.unach.mx · Ing. Jorge M. BUCCELLA 4ª Edición Universidad Nacional de Cuyo Escuela de Comercio "Martín Zapata" Polimodal: Producción de Bienes

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