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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

Option 1)
4 L

Option 2)
2L

Option 3)
L/2

Option 4)
L/4

Answers (1)

best_answer

As we learnt in

RLC circuit Voltage -

$V_{R}=iR\: \: \: V_{L}= {i}\ X_{L}\: \: \: V_{C}={i}\ X_{C}$

- wherein