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NEET2019PhysicsAlternating CurrentActual

Find resonance frequency in the given circuit

Options

  1. A1 L C
  2. B2 L C
  3. C1 2 L C
  4. D4 L C

Correct answer

A. 1 L C

Step-by-step solution

In the given circuit diagram, both inductors of inductance L are parallel to each other, hence L _ eg = L ₁ ~L ₂ ~L ₁+ L ₂ = L . L L + L = L 2 Similarly, C _ eg = C ₁+ C ₂= C + C =2 C Resonance frequency ₁= 1 L _ cg C _ cg = 1 L 2 2 C = 1 LC = 1 LC

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