Mensaje de error

  • Deprecated function: The each() function is deprecated. This message will be suppressed on further calls en menu_set_active_trail() (línea 2394 de /home1/montes/public_html/drupal/includes/menu.inc).
  • Notice: Trying to access array offset on value of type null en theme_pager() (línea 331 de /home1/montes/public_html/drupal/includes/pager.inc).
  • Notice: Trying to access array offset on value of type null en theme_pager_first() (línea 459 de /home1/montes/public_html/drupal/includes/pager.inc).
  • Notice: Trying to access array offset on value of type null en theme_pager_previous() (línea 489 de /home1/montes/public_html/drupal/includes/pager.inc).
  • Notice: Trying to access array offset on value of type null en theme_pager_next() (línea 528 de /home1/montes/public_html/drupal/includes/pager.inc).
  • Notice: Trying to access array offset on value of type null en theme_pager_next() (línea 529 de /home1/montes/public_html/drupal/includes/pager.inc).
  • Notice: Trying to access array offset on value of type null en theme_pager_last() (línea 564 de /home1/montes/public_html/drupal/includes/pager.inc).
  • Notice: Trying to access array offset on value of type null en theme_pager_last() (línea 564 de /home1/montes/public_html/drupal/includes/pager.inc).
  • Notice: Trying to access array offset on value of type null en theme_pager_next() (línea 528 de /home1/montes/public_html/drupal/includes/pager.inc).
  • Notice: Trying to access array offset on value of type null en theme_pager_next() (línea 529 de /home1/montes/public_html/drupal/includes/pager.inc).
  • Notice: Trying to access array offset on value of type null en theme_pager_last() (línea 564 de /home1/montes/public_html/drupal/includes/pager.inc).
  • Deprecated function: The each() function is deprecated. This message will be suppressed on further calls en book_prev() (línea 775 de /home1/montes/public_html/drupal/modules/book/book.module).
  • Notice: Trying to access array offset on value of type int en element_children() (línea 6422 de /home1/montes/public_html/drupal/includes/common.inc).
  • Notice: Trying to access array offset on value of type int en element_children() (línea 6422 de /home1/montes/public_html/drupal/includes/common.inc).
  • Notice: Trying to access array offset on value of type int en element_children() (línea 6422 de /home1/montes/public_html/drupal/includes/common.inc).
  • Deprecated function: implode(): Passing glue string after array is deprecated. Swap the parameters en drupal_get_feeds() (línea 394 de /home1/montes/public_html/drupal/includes/common.inc).

Ejercicio 6.9 (Fasores)

Solapas principales

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Resolucion:

a) La expresion fasorial de la corriente con referencia al seno viene dada por:
 
i(t)=-I_o\cdot cos(w\cdot t-30)=
=-I_o\cdot sen(w\cdot t-30+90)=
=-I_o\cdot sen(w\cdot t+60)=
=-I_o\cdot sen(w\cdot t+\frac{\pi}{3})=
=-I_o\cdot Im\left(e^{j\,(w\cdot t+\frac{\pi}{3})}\right)=
=Im\left(-I_o \cdot e^{j\,(w\cdot t)}\cdot e^{j\,\frac{\pi}{3}} \right)=
=Im\left(-I_o \cdot e^{j\,\frac{\pi}{3}}\cdot e^{j\,(w\cdot t)} \right)=
=Im\left(-I_o\cdot cos\left(wt+\frac{\pi}{3}\right)-j\,I_o\cdot sen\left(wt+\frac{\pi}{3}\right)\right)
 
Con lo que el fasor es:
 
I=-I_o \cdot e^{j\,\frac{\pi}{3}}
 
 
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