In LCR circuit, resonant frequency is 600Hz and half power points are at 650 Hz and 550Hz. The quality factor is
A
16
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B
13
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C
6
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D
3
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Solution
The correct option is C6
Quality factor is given by Q=f0Δf
where f0 is the resonant frequency and Δf is the difference between frequencies at half power points.
Putting values we get Q=600650−550=600100=6