Question

For the circuit given in figure below, the Thevenin equivalent as viewed from terminals y and y’ is _________ (a) 8 V and 32 Ω (b) 4 V and 32 Ω (c) 5 V and 6 Ω (d) 7 V and 6 Ω The question was asked in an online interview. My doubt stems from Thevenin Theorem Involving Dependent and Independent Sources in division Useful Theorems in Circuit Analysis 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)

Answer 1

Correct choice is (d) 7 V and 6 Ω The explanation: We, Thevenized the left side of xx’ and source transformed right side of yy’. Thevenin equivalent as seen from terminal yy’ is Vxx’ = Vth = \(\displaystyle\frac{\frac{4}{24} + \frac{8}{8}}{\frac{1}{24} + \frac{1}{8}}\) = 5V = \(\frac{0.167+1}{0.04167+0.125}\) = 7 V ∴ Rth = (8 + 16) || 8 = \(\frac{24×8}{24+8}\) = 6 Ω.