In an LCR circuit, the resonant frequency is 600 Hz and half-power points are at 650 Hz and 550 Hz . The quality factor is

Question

In an LCR circuit, the resonant frequency is 600 Hz and half-power points are at 650 Hz and 550 Hz . The quality factor is,

MARKS App · Accepted Answer

In LCR series, resonant frequency, f r = 600 Hz ∴ ω r = 2 π × 600 Hz Frequencies at half power are given as, f 1 = 550 Hz and f 2 = 650 Hz ω 1 = 2 π × 550 Hz and ω 2 = 2 π × 650 Hz Quality factor, Q = ω r ω 2 - ω 1 = 2 π × 600 2 π × 650 - 2 π × 550 = 2 π × 600 2 π × 100 = 6

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