Ohm's law for closed circuit: many current sources
$$n\cdot E = I\cdot R+I\cdot n\cdot r$$
n - number of current sources
Ε - electromotive force
I - current intensity
R - external resistance
r - inner (internal) resistance of current source
Ε - electromotive force
I - current intensity
R - external resistance
r - inner (internal) resistance of current source
Find
It is known that:
= 