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[单选题]
图示电路中,已知R1=10Ω,R2=5Ω,a、b两端的等效电阻R=()。
图示电路中,已知R1=10Ω,R2=5Ω,a、b两端的等效电阻R=()。![图示电路中,已知R1=10Ω,R2=5Ω,a、b两端的等效电阻R=()。](https://img2.soutiyun.com/xilvedu/2020-09-09/968494310649696.png)
A.5Ω
B.6Ω
C.20/3Ω
D.40/3Ω
查看答案
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.5Ω
B.6Ω
C.20/3Ω
D.40/3Ω
A、R1和R2为测量工作应变片,R3和R4为温度补偿应变片
B、R1和R3为测量工作应变片,R2和R4为温度补偿应变片
C、R1和R4为测量工作应变片,R2和R3为温度补偿应变片
D、R2和R3为测量工作应变片,R1和R4为温度补偿应变片
已知 R1=R2=1Ω,L1=1H,C=1F。若激励是 (t),响应是u2(t),求网络函数H(S)。
A.0.7
B.0.9946
C.3
D.0
A.0.0309
B.0.3
C.30
D.200
A.6.18
B.200
C.0.03
D.9096
A.0.3678
B.0.1234
C.0.2362
D.0.2
A.0.3
B.0.6485
C.22
D.0.5128