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MHT CET20249 May 2024Morning ShiftPhysicsAlternating CurrentActual

LC series resonant circuit produces resonant frequency ' f '. If. ' L ' is tripled and ' C ' is increased by 3C, the resonant frequency will be

Options

  1. Af 3
  2. Bf 2 3
  3. C6 f
  4. Df 2 2

Correct answer

B. f 2 3

Step-by-step solution

array ll & At resonance, f = 1 2 LC f 1 LC & f ^ f = ( L ₁ C ₁ ~L ₂ C ₂ ) = ( L C 3 ~L 4 C )^ 1 / 2 = 1 (12)^ 1 / 2 & f ^ f = 1 2 3 f ^ = f 2 3 array

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