Assertion (A): Practical systems must be closed loop system.Reason (R): This is due to the fact that closed loop systems are least affected by parameter variations, stable, higher bandwidth, linear and more speed of response.

Feedback Characteristics of Control Systems topics include: Linearizing effect and regenerative feedback, effects of disturbance signal by using feedback, feedback and non-feedback systems. Here are some characteristics of feedback control systems: Stability: A system is stable if it has a bounded output signal for any bounded input signal. Feedback can improve stability, but it can also be harmful if not applied correctly. Steady-state error: This is the error signal that persists under steady state conditions. The higher the gain of the amplifier, the lower the steady state... Show more

Feedback Characteristics of Control Systems topics include: Linearizing effect and regenerative feedback, effects of disturbance signal by using feedback, feedback and non-feedback systems.

Here are some characteristics of feedback control systems:

Stability: A system is stable if it has a bounded output signal for any bounded input signal. Feedback can improve stability, but it can also be harmful if not applied correctly.
Steady-state error: This is the error signal that persists under steady state conditions. The higher the gain of the amplifier, the lower the steady state error.
Controllability: This is one of the five most important factors in the design and performance of feedback control systems.
Observability: This is one of the five most important factors in the design and performance of feedback control systems.
Parameter sensitivity: This is one of the five most important factors in the design and performance of feedback control systems.
Noise and disturbance: In many situations, feedback can reduce the effect of noise and disturbance on system performance.
Transient response: Feedback can improve the transient response of a system, causing it to decay more slowly.

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