Jak obliczyć I i U
R1 = 100 [om]
R2 = 40 [om]
R3 = 10 [om]
R4 = 200 [om]
I = ?
I2 = 0.5 [A]
I3 = 0.125[A]
U2 = U3 = 5[V]
U = ?
