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For the function F (s) = (s+5)/s(s^2+2s+5), after splitting this function into the partial fractions, the co-efficient of 1/(s+1-j2) is? (a) 1/2 (b) -1/2 (c) 1/4 (d) -1/4 I had been asked this question in a job interview. This key question is from Inverse Transforms in portion Intoduction to the Laplace Transform of Network Theory Select the correct answer from above options network theory questions and answers, network theory questions pdf, network theory question bank, network theory gate questions and answers pdf, mcq on network theory pdf, gate network theory questions and solutions, network theory mcq Test , ies network theory questions, Network theory Questions for GATE EC Exam, Network Theory MCQ (Multiple Choice Questions)

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The correct answer is (b) -1/2 For explanation I would say: To obtain the constant B, multiply the given equation with (s+1-j2) and putting s = -1+j2. B = (s + 1 – j2)F (s)|s = (-1+j2) = (s+5)/s(s+1+j2)|s=-1+j2 = -1/2.

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