Resonance frequency of $L-C-R$ series $AC$ circuit is $f_0$. Now,if the inductance is reduced to $\frac{1}{4}$ times and the capacitance is increased to $16$ times,then the new resonance frequency becomes:

  • A
    $\frac{f_0}{4}$
  • B
    $\frac{f_0}{2}$
  • C
    $2 f_0$
  • D
    $4 f_0$

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