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Question

The Q factor of a series LCR circuit with L = 2 H, C=32μF and R=10Ωis:

A
15
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B
20
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C
25
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D
30
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Solution

The correct option is B 25
Here, L=2H,C=32μF=32×106F,R=10Ω
Resonance frequency,
ωr=1LC=12×32×106=1038rads1

Quality factor = ωrLR=103×28×10=25

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