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In a RLC circuit capacitance is changed ...

In a RLC circuit capacitance is changed from C to 2 C. 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
`f_(r) = (1)/(2 pi sqrt(LC))`
As `f_(r)` is constant
L changes to `(L)/(2)` as C changes to 2C
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