電壓源的功率=100*3=300
P1=50W P2=50W P3=200W
P1+P2+P3=300W=P電壓源
pT=p1+p2+p3
300=50+50+200
P1=50W P2=50W P3=200W PTH=300W 成立
P電壓源=100Vx3A=300W
PR1=PR2=100Vx0.5A=50W
PR3=200W
P電壓源=PR1+PR2+PR3
vpower=300=50+50+200=300total Resistors
p1+p1+p3=pt
50+50+200=300
P1=50w P2=50w P3=200w
P=300w=P1+P2+P3
Pt=50+50+200=300W
Rt=200//200//50=100/3
Pe=100*100/(100/3)=300W
Pt=Pe