KCL得:I1+I2=I3
KVL对网孔Ⅰ:I1R1+R2(I1-I2)+I1R2=E1-E2+E3
KVL对网孔Ⅱ:(I2-I1)R2=-E4+E2
带入数据得
i1=2.5x10^(-4)A
i2=4.5x10^(-4)A
I3=7.0X10^(-4)A
KCL得:I1+I2=I3
KVL对网孔Ⅰ:I1R1+R2(I1-I2)+I1R2=E1-E2+E3
KVL对网孔Ⅱ:(I2-I1)R2=-E4+E2
带入数据得
i1=2.5x10^(-4)A
i2=4.5x10^(-4)A
I3=7.0X10^(-4)A