更新时间2018-10-28 12:13:40
I5=I4+I1 ①
I2=I1+I6 ②
I4=I6+I3 ③
I1+2I2=10 ④
I3-2I2=-5 ⑤
2I4-I1=5 ⑥
解:②-③:I2-I4=I1-I3
故:I3=I1+I4-I2 代入⑤:
I1+I4-3I2=-5
故:I4=3I2-I1-5 代入⑥:
-2I1+6I2=15 联立I1+2I2=10 解得:I2=3.5,I1=3
故:I4=3I2-I1-5 =2.5
I3=I1+I4-I2=2
I5=I4+I1=5.5
I6=I2-I1=0.5