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Resonance in Series LCR for GSEB: 9 solved questions

Real GSEB paper questions on resonance in series lcr, part of alternating current. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 2015 to 2023. No sign-in needed to read them.

What this topic asks

• Power and bandwidth at resonance — 7 questions
• Resonance condition and tuning — 2 questions

All 9 questions with solutions

• Resonant angular frequency for an L-C-R A.C. series circuit is ω₀ = . GSEB Board July 2015
• For an L-C-R A.C. circuit the resonant frequency is 600 Hz and the frequencies at the half-power points are 5… GSEB Board July 2015
• The value of the Q-factor in an L-C-R (AC) series circuit is _. GSEB Board July 2016
• For an L-C-R A.C. circuit the resonance frequency is 600 Hz and the frequencies at the half-power points are… GSEB Board March 2018
• For an L-C-R A.C. circuit the resonance frequency is 500 Hz and the frequencies at the half-power points are… GSEB Board July 2018
• For an LCR series circuit, L = 2.0 H, C = 32 μF and R = 10 Ω. is the Q value for this circuit. GSEB Board August 2020
• The formula of the Q-factor (quality factor) is Q= _. GSEB Board July 2021
• Q-factor is given by . GSEB Board July 2022
• Which of the following combinations should be selected for better tuning of an LCR a.c. circuit used for comm… GSEB Board March 2023