Aaga blog

 

             Answer:                        It is mentioned roots are moving away from imaginary axis but they didnt           mentioned moving direction (Right side or left side of imaginary axis) .  If it is moved right side of imaginary axis system stability will be decreased.  If it is moved left side of imaginary axis system stability will be increased. Here we can choose undefined . Answer:                                                              So answer is B.                  Answer is B. Negative feedback reduce error signal.                  Answer is A.         Answer : B As Corner frequency is not given, We cannot find exact function.