1.R1R2/(R1+R2)2.5A=6V
0.6A(R1+R2)=6V
R1=6 R2=4
2.P1=2.5*6=15 P2=0.6*6=3.6
3.P=U^2/R=U^2/[24/(32/U)-4]=32
解得U1=16 U2=8