Question

The relation AD – BC = 1, (where A, B, C and D are the elements of a transmission matrix of a network) is valid for ___________ (a) Both active and passive networks (b) Passive but not reciprocal networks (c) Active and reciprocal networks (d) Passive and reciprocal networks This question was posed to me during an internship interview. This intriguing question originated from Series-Series Connection of Two Port Network topic in section Two-Port Networks 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 (d) Passive and reciprocal networks For explanation: AD – BC = 1, is the condition for reciprocity for ABCD parameters, which shows that the relation is valid for reciprocal network. The ABCD parameters are obtained for the network which consists of resistance, capacitance and inductance, which indicates that it is a passive network.