Question

The value of ZTh in the circuit shown below is? (a) Z3+(Z1Z2/(Z1+Z2)) (b) Z1+(Z3Z2/(Z3+Z2)) (c) Z2+(Z1Z3/(Z1+Z3)) (d) (Z1Z2/(Z1+Z2)) I had been asked this question in an international level competition. This interesting question is from Thevenin’s Theorem topic in section Steady State AC 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 option is (a) Z3+(Z1Z2/(Z1+Z2)) To explain I would say: The thevenin’s equivalent form of any complex impedance consists of an equivalent voltage source and an equivalent impedance. The thevenin’s impedance is ZTh = Z3+(Z1Z2/(Z1+Z2)).