elec.py

Created by elisapuce2005

Created on June 01, 2022

466 Bytes

intensité: I=|Q|/dt en A en C en s
Q=N*e en C 

Tension avec générateur - -> + : 
  
Source idéale: U=E, U est indépendante de I 
Source réelle: U=E-rxI 
U diminue lorsque I augmente 

Puissance= U*I      V,A
Energie = Pelec*dt  W,s 
ou Pelec en kW et Eelec en kWh
E=P*dt
1kw.h=1kw*1h
1kw.h=1000W*3600s
1kw.h=3,6*10^6 J 

Pini = Pex + Pperdue 
rendement = pexploitable/pentrée

Loi d'ohm : U = RxI ohm, A 
Effet Joule = 
P=U*I donc P=RXIXI= R*I^2

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