railway RRB JE (CBT I + CBT II) Mock Test 2024 Control Systems Frequency Response Analysis Bode Plot
Consider a unity feedback system having an open loop transfer function
\(G(j\omega ) = \frac{k}{{j\omega \left( {j0.2\omega + 1} \right)\left( {j0.05\omega + 1} \right)}}\)
Find open loop gain (k) with gain margin of 20 dB
1
5.2
2
2.5
3
0.1
4
2.25