Question

Vreau doar 3 ul... rapid va rog...

Answer 1

U=RI=>R=U/I=6/0,25=24 Ω

U1=4 V=>I1=U1/R=4/24=0,16 A

I2=0,075 A=>U2=RI2=24*0,075=1,8 V

U3=12 V=>I3=U3/R=12/24=0,5 A