Pls SOlve this

Basic control system components; block diagrammatic description, reduction of block diagrams. Open loop and closed loop (feedback) systems and stability analysis of these systems. Signal flow graphs and their use in determining transfer functions of systems; transient and steady state analysis of LTI control systems and frequency response. Tools and techniques for LTI control system analysis: root loci, Routh-Hurwitz criterion, Bode and Nyquist plots. Control system compensators: elements of lead and lag compensation, elements of Proportional-Integral-Derivative (PID) control. State variable representation and solution of state equation of LTI control systems.

Pls SOlve this

Postby KaranPatel » Tue Dec 24, 2013 10:54 am

THe open loop transfer function of unity gain feedback control system is given by , G(S)=(K)/((s+1)(s+2))
the GM in db is ?
Gate 2006
Please explain.!!
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