In a series LCR resonance circuit, if we change the resistance only, from a lower to higher value :
In a series LCR resonance circuit, if we change the resistance only, from a lower to higher value :
Option 1 -
The quality factor will increase
Option 2 -
The resonance frequency will increase
Option 3 -
The quality factor and the resonance frequency will remain constant
Option 4 -
The band width of resonance circuit will increase
Asked by Shiksha User
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1 Answer
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Correct Option - 4
Detailed Solution:Resonance frequency is independent of R.
Quality factor = ωL/R ⇒ Quality factor decreases with increase in R.
Bandwidth of resonance circuit = R/L ⇒ increases with increase in R.
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