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Question

A series RLC circuit has a bandwidth of 300 rad/s at a resonance frequency of 3000 rad/s when excited by a voltage source of 100 V. The inductance of the coil is 0.1 H. The quality factor is -

A
10
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B
20
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C
30
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D
40
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Solution

The correct option is A 10
We know that, quality factor,

Q=Resonant FrequencyBandwidth=ω02Δω

Q=3000300=10

Hence, option (A) is the correct answer.

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