Question

Помогите срочно!!!!

Answer 1

R23=R2*R3/(R2+R3)=4*12/(4+12)=3 Ом  R234=R23+R4=3+3=6 Ом   R2345=R5*R234/(R5+R234)=6*6/(6+6)=3 Ом  R=R1+R2345=2+3=5 Ом I

I=I=I5*2=2*I0=20 A   U=I*R=20*5=100 B