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In a LCR circuit capacitance is changed ...

In a LCR circuit capacitance is changed from C to 2C. For the resonant frequency to remain unchanged, the inductance should be changed from L to

A

`4L`

B

`2L`

C

`L//2`

D

`L//4`

Text Solution

Verified by Experts

The correct Answer is:
C
`V_(0)=1/(2pisqrt(LC))`
If `C` changes to `2C` then for keeping `V_(0)` constant `L`must change to `L//2`
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