Question: For a control system with the signal flow graph (SFG), shown in Fig. 3.3 , and the transfer function of (frac{C(s)}{R(s)}), which one of the

For a control system with the signal flow graph (SFG), shown in Fig. 3.3 , and the transfer function of \(\frac{C(s)}{R(s)}\), which one of the following choices is correct?

1) The system is always unstable.
2) For \(k3) For \(k=-1\), the system has an undamped response.
4) For \(k

Figure 3.3

For a control system with the signal flow graph (SFG), shown in

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