Dr. David Alejandro Sifuentes Godoy
Circuitos en Corriente Alterna
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Autores Historicos
Heinrich Rudorf Hertz (1857–1894), a German experimental physicist, demonstrated that electromagnetic waves obey the same fundamental laws as light. Hiswork confirmed James Clerk Maxwell’s celebrated 1864 theory and prediction that such waves existed. Hertz was born into a prosperous family in Hamburg, Germany. He attended the University of Berlin and did his doctorate under the prominent physicist Hermann von Helmholtz. He became a professor at Karlsruhe, where he began his quest for electromagnetic waves. Hertz successfully generated and detected electromagnetic waves; he was the first to show that light is electromagnetic energy. In 1887, Hertz noted for the first time the photoelectric effect of electrons in a molecular structure. Although Hertz only lived to the age of 37, his discovery of electromagnetic waves paved the way for the practical use of such waves in radio, television, and other communication systems. The unit of frequency, the hertz, bears his name.
Caracteristicas de la señal de Corriente alterna
Comportamiento del Voltaje y la Corriente en elementos RLC
Condiciones de resonancia en un circuito RLC
Resonancia: La resonancia se presenta en un circuito RLC cuando los valores de reactancia inductiva y reactancia capacitiva alcanzan un mismo valor, este fenomeno es producido por la modificación de la frecuencia.
Un circuito RLC en paralelo es recomendable analizarlo a traves de el método de las Admitancias.
Admitancia: La admitancia es la facilidad que presenta un circuito para permitir el flujo de la corriente.
La admitancia esta formda por una parte real denominada Conductancia (G) y una parte imaginaria denominada Suceptancia (B).
La unidad de medida de todas estas variables es el Siemens (S).
