R1=U1额²/P1额=(220V)²/15w=3227Ω
R2=U2额²/P2额=(220V)²/60w=807Ω
实际电流I=U/R=U/(R1+R2)=220V/(3227Ω+807Ω)=0.0545A
P1'=I²R1=(0.0545A)²*3227Ω=9.6w
P2'=I²R2=(0.0545A)²*807Ω=2.4w
R1=U1额²/P1额=(220V)²/15w=3227Ω
R2=U2额²/P2额=(220V)²/60w=807Ω
实际电流I=U/R=U/(R1+R2)=220V/(3227Ω+807Ω)=0.0545A
P1'=I²R1=(0.0545A)²*3227Ω=9.6w
P2'=I²R2=(0.0545A)²*807Ω=2.4w