Kirchhoff's Current Law (KCL) and Kirchhoff's Voltage Law (KVL)
Fondamental : Kirchhoff's Current Law (KCL) and Kirchhoff's Voltage Law (KVL)
These laws are written in the form (see figure) :
Kirchhoff's current law :
\({i_1} + {i_3} + {i_4} = {i_2} + {i_5}\)
Kirchhoff's voltage law :
\({u_1} - {u_2} + {u_3} - {u_4} + {u_5} = 0\)
Complément : Pouillet's law
The KVL gives :
\({u_{BA}} = E - ri = Ri\)
We deduce the intensity in the circuit (this is the Pouillet's law) :
\(i = \frac{E}{{r + R}}\)
