Question

In the circuit given below, the value of RL for which it absorbs maximum power is ___________ (a) \frac{400}{3} Ω (b) \frac{2}{9} kΩ (c) 350.38 Ω (d) \frac{4}{9} kΩ I got this question in an internship interview. The doubt is from Advanced Problems on Millman’s Theorem and Maximum Power Transfer Theorem topic 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

The correct choice is (c) 350.38 Ω Explanation: 5 = 200I – 50 × 2I Or, I = \frac{5}{100} = 0.05 A VOC = 100 × 3I + 200 × I = 25 V V1 = \frac{\frac{5}{50}}{\frac{1}{50} + \frac{1}{200} + \frac{1}{100}} = \frac{0.1}{0.02+0.005+0.01} = 2.85 V I = \frac{2.85}{100} = 0.0142 A = 14.2 mA ISC = \frac{2.85}{100} + 3 × 0.0142 = 0.07135 A ∴ RTH = \frac{V_{OC}}{I_{SC}} = \frac{25}{0.07135} = 350.38 Ω.