Question

The resonant frequency of m-derived low pass filter in terms of the cut-off frequency of low pass filter is? (a) fc/√(1-m^2) (b) fc/√(1+m^2) (c) fc/(π√(1-m^2)) (d) fc/(π√(1+m^2)) I got this question by my college professor while I was bunking the class. The query is from m-Derived T-Section in division Filters and Attenuators 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 option is (a) fc/√(1-m^2) To explain: If a sharp cut-off is desired, the frequency at infinity should be near to fc. The resonant frequency of m-derived low pass filter in terms of the cut-off frequency of low pass filter is fr=fc/√(1-m^2).