Control Systems
Which of the following are the disadvantages of a closed loop control system?

 Reduces the overall gain.
 Oscillatory response.
All of these
 Complex and costly.

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Control Systems
Find the conditions for the system to be stable?

 Gain margin is negative but phase margin is positive
 Gain margin and phase margins are positive
 Gain margin is positive but phase margin is negative
 Gain margin and phase margins are negative

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