Question

Given, R = 10 Ω, L = 100 mH and C = 10 μF. Selectivity is? (a) 10 (b) 1.2 (c) 0.15 (d) 0.1 This question was posed to me in an internship interview. Query is from Problems of Series Resonance Involving Frequency Response of Series Resonant Circuit topic in section Resonance & Magnetically Coupled Circuit 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 answer is (d) 0.1 To explain: Selectivity = \(\frac{1}{Q}\) Q = \(\frac{ωL}{R} = \frac{1000×100×10^{-3}}{10}\) ∴ Q = 10 So, Selectivity = 0.1.