Explanation: A circuit is said to be unstable if its output increases with time instead of achieving fixed value. In fact the output keeps on increasing until the system breaks down. Therefore, unstable systems are impractical and need to be made stable. 6. How is the criterion for the system determined?
A. All of the mentioned
B. Theoretical method
C. Analytical method
D. Graphical method
Answer:A
Explanation: A circuit is said to be unstable if its output increases with time instead of achieving fixed value. In fact the output keeps on increasing until the system breaks down. Therefore, unstable systems are impractical and need to be made stable. 6. How is the criterion for the system determined?
A. All of the mentioned B. Theoretical method C. Analytical method D. Graphical method
Explanation: The criterion for stability of system is tested practically using one of the above mentioned methods. 7. A standard block diagram of closed loop system composes of