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5. this signal signifies a sudden change in reference input at t=0.
9. closed loop control system has a error_______
11. ratio of output and input is called_______?
12. in feedback system gain is _______ by a factor(1+GH).
13. in electrical system voltage is analogous to_______in mechanical system.
14. the difference between input signal and reference signal is called_____signal?

1. in electrical system inductance is analogous to_______in mechanical system.
2. the ratio of laplace transform of output to input is called_____function.
3. input applied instantaneously is called_____input.
4. automatic electric iron has a________ mechanism.
6. in mechanical system displacement is analogous to_______in electrical system.
7. in electrical system resistance is analogous to_______in mechanical system.
8. in electrical system elasticity(1/C) is analogous to_______in mechanical system.
10. a system in which the control action is dependent of output of the system is called________loop system?
15. a system in which the control action is independent of ouput of the system is called________loop system?