Question

In the circuit shown below, find the value of load impedance for which source delivers maximum power. (a) 15-j20 (b) 15+j20 (c) 20-j15 (d) 20+j15 The question was posed to me during a job interview. The query is from Maximum Power Transfer Theorem in chapter 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 (a) 15-j20 To explain: The maximum power transfer occurs when the load impedance is equal to the complex conjugate of source impedance ZS. ZL = ZS^* = (15-j20)Ω.