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NEET2006PhysicsAlternating CurrentActual

In a L-C-R circuit, the capacitance is made one-fourth, then what should be change in inductance, so that the circuit remains in resonance?

Options

  1. A8 times
  2. B1 / 4 times
  3. C2 times
  4. D4 times

Correct answer

D. 4 times

Step-by-step solution

Resonance frequency f= 1 2 L C For the circuit to remain in resonance, L C = constant aligned or L₁ C₁ & =L₂ C₂ or L C & =L₂ C 4 L₂ & =4 L aligned Inductance should be change to four times.

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