In series LCR circuit, the capacitance is changed from $C$ to $4 C$. To keep the resonance frequency unchanged, the new inductance should be:

Question

increased by $2 \mathrm{~L}$

reduced by $\frac{1}{4} \mathrm{~L}$

reduced by $\frac{3}{4} \mathrm{~L}$

increased to $4 \mathrm{~L}$

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