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Question: Answered & Verified by Expert
An L.C. circuit is in the state of resonance. If $C=0.1 \mu \mathrm{F}$ and $L=0.25$ Henry. Neglecting ohmic resistance of circuit. What is the frequency of oscillations?
PhysicsAlternating CurrentJIPMERJIPMER 2005
Options:
  • A 1007 Hz
  • B 100 Hz
  • C 109 Hz
  • D 500 Hz
Solution:
2569 Upvotes Verified Answer
The correct answer is: 1007 Hz
From the formula, the frequency of oscillation is
$\begin{aligned} f & =\frac{1}{2 \pi \sqrt{L C}} \\ & =\frac{1}{2 \pi \sqrt{0.25 \times 0.1 \times 10^{-6}}} \\ & =1007 \mathrm{~Hz}\end{aligned}$

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