wallah.py

Created on November 21, 2022

633 Bytes

Ex 1 :
  1) C'est un signal alternatif
  2) Umax : 250  / Umin : -250 / Umoy : 0
  3) Umax/V2   ->  250/V2
  4) T=20ms->0,02s    f=1/T  =  1/0,02  = 50Hz
  
  
Ex 2 :
  2) a)I1 = I2 + I3
     b) C'est la loi des noeuds
  4) Si L3 grille alors le courant passera dans L2 alors 
  A1 etA2 mesurerons 1,5A et A3 ne mesure rien
  5) L1 : 5V et L3 : 2V 
  
Ex 4 :
  1) i=i1-i2 -> i1=i-i2 = i1=0,3A
  3) La somme algébrique des intensités des courants dans
  les conducteurs orientés vers un nœud est égale à la 
  somme algébrique des intensités des courants dans les 
  conducteurs orientés à partir du nœud.

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