loielec.py

Created by klfraimbow

Created on April 13, 2023

786 Bytes

Loi d electricite


I (A)= 0q (Coulons) / 0t (s)
 
Q(A.h)=I(A)*t(h)
 
Loi des noeuds : somme algebrique
des courant arrivant sur un noeud
est egale a la somme alebrique
des courants sortant du noeuds 

Additivite tension: 
La tension u entre 2 points = 
la somme algebrique des tensions
rencontrees entre ces deux points

Loi des mailles:
La somme des tensions rencontrees 
le long d une maille = 0 

pointe = +    cu = -
Generatuer meme sens
recepteur contre

Loi d Ohm
U= R*I
si u et i flecher meme sens
U= -R*I

I=U/R = Eth/ Rth+Rc 
U = Eth-Rth*I
P=E*I

Loi de Joule (Puissance absorbe)
P=Pi=R*I*I =R*I**2 
    =U* U/R= U**2 /R

Serie : Req=R1+R2+...
Parallèle : 1/Req= 1/R1 + 1/R2 
 Req = R1*R2 /R1+R2
 
Variable : Ueff= rac(<u>**2)
Sinusoidale : U=Umax/rac2
I=Imax/rac2

P(w)=UIcos0  

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