Q114 / 125 · BITSAT 2011 · Physics

Which one of the following curves represents the variation of impedance ( $Z$ ) with frequency $f$ in series LCR circuit?

  • A
    Figure
  • B
    Figure
  • Correct answer
    C
    Figure
  • D
    Figure

Solution

$Z=\sqrt{R^{2}+\left(2 \pi \mathrm{fL}-\frac{1}{2 \pi \mathrm{fC}}\right)^{2}}$

Hence, the correct answer is option: 'C'.

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