先断开12A电流源,仅留24V电压源,在此情况下:
I3a=-24/(6+6//3)=-24/8=-3(A).
I4a=(24-3x6)/(3+3)=1(A)
I1a=(24-3x6)/(1+2)=2(A)
I2a=-I2a=-2A
再认为24V电压源短路,仅保留12A电流源,在此情况下
1欧电阻两端的电压 UR1=12*(1//(2+(6//(3+3)))=12*(1//5)=5V.
所以 I1b=5/1=5(A).
I2b=12A-I1b=7(A)
I3b=I4b=3.5A
根据叠加定理:
I1=I1a+I1b=7A
I2=I2a+I2b=7A-2A=5A
I3=I3a+I3b=-3+3.5A=0.5A
I4=I4a+I4b=1A+3.5A=4.5A