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Q2 (a) List down THREE (3) important requirements to design a control system. (3 marks) State the possible consequence when aPlant Amplifier R(S) C(s) + K 1 s(s2 + 1.4s +1) Figure Q2 (d)

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Q-1 Consider Hu following characteristic equation shown below. P(5) 85 +683 + 55² +85+ 20. solution Routh table 55+ 054 +683

S5 1 3 8 S4 ह २० ४६-२० O 33 38-5 ६ S2 (5)(355)-(१५१०१० ६-5 -२० 51 (३६-२०) 5855) - ६ (६६-२० (३६-5 ६ 5(36-5)-६(४६-20) ६ ६ ३६ -515६-25) (४६-२०) ६ (3६-5) ६ 5 (8६-२०) (35516 5- (४६-२०)६ 38-5 15६-२5-882+२०६ 38-5 Naglut 842 (very small 35६-25 36-5 -25 -5 -

६-२० ५ २०(3६-5) (E) - (३६-२०) २०( 3 ६-5] 158 - 7-8+२०६ ६-२० ६ ६ २०(38-5) 35६-25-82 (8६-२०) (35६-25-४६)- 6०६+ 16०६ ६ (35६-२5-8

55 tve S4 +ve کل - ve S? tve S1 tve t -ve tve. In He first column of Routh table only & Sign changes from the • which indicat

From Routh table odd row Zero Is 3rd row Auxillary equation is formed from the row Just above the odd row Zero. so Auxillary

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