(a) Describe the open loop and closed loop system in terms of stability.
(2 marks)
(b)
A system is presented as in block diagram as shown in Figure Q2(b). Use,
Set 1: By replacing a=1, b=2 and c=3, if your last matric digit is 0-5
Set 2: By replacing a=3, b=1 and c=2, if your last matric digit is 6-9
(i) Convert the block diagram into signal flow graph
(4 marks)
(ii) Evaluate the transfer function, C(s)/R(s) using method in Q2(b)(i)
(12 marks)