图示电路中,已知:IS1 =3A,IS2 =2A,IS3 =1A,R1 =6W,R2 =5W,R3 =7W。用基尔霍夫电流定律求电流I1 、I2 和 I3 分别等于( )。[img=208x140]1803da58f54732f.png[/img]
A: I1 =-1A I2 =-2A I3=1A
B: I1 =1A I2 =-2A I3=-1A
C: I1 =-2A I2 =-1A I3=1A
D: I1 =-1A I2 =2A I3=1A
E: I1 =1A I2 =2A I3=-1A
A: I1 =-1A I2 =-2A I3=1A
B: I1 =1A I2 =-2A I3=-1A
C: I1 =-2A I2 =-1A I3=1A
D: I1 =-1A I2 =2A I3=1A
E: I1 =1A I2 =2A I3=-1A
举一反三
- 图示电路中,已知 I 1 = 4A,I 2 = -2A,I 3= 1A,I 4= -3A,I 5
- 图示电路中,已知 I 1 = 4A,I 2 = -2A,I 3= 1A,I 4= -3A,I 5=()A 。https://p.ananas.chaoxing.com/star3/origin/1258855a36c0da720d1f654ab778512f.png
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- I 如图所示,已知I1=3A,I2=-1A,I3=?5680d046e4b0e85354abd33a.png