如图,r1=2欧、r2=4欧、r3=4欧,求ab两端的等效电阻为多少?

如图,R1=2欧、R2=4欧、R3=4欧,求AB两端的等效电阻为多少?<img src='https://img2.soutiyun.com/shangxueba/ask/18831001-18834000/18832045/2017052509504647037.jpg' />

时间:2023-12-17 10:41:43

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