In an LCR series circuit the capacitance is changed from `C` to `4C` For the same resonant fequency the inductance should be changed from `L` to .

Question

In an LCR series circuit the capacitance is changed from `C` to `4C` For the same resonant fequency the inductance should be changed from `L` to .

In an LCR series circuit the capacitance is changed from `C` to `4C` For the same resonant fequency the inductance should be changed from `L` to .
A. 2 L
B. L/2
C. L/4
D. 4L

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
`f_(1)=f_(2)`
`(1)/(2pisqrt(L_(1)C_(1)))=(1)/(2pisqrt(L_(2)C_(2)))`
But, `C_(2)=4C_(1)`
`L_(1)=4L_(2)`
`therefore L_(2)=(L_(1))/(4)=(L)/(4)`

4 views Answered 2023-02-05 15:29