Navigate

In an LCR circuit, capacitance is changed from C to 2C. For the resonant frequency

In an LCR circuit, capacitance is changed from C to 2C. For the resonant frequency to remain unchanged, the inductance should be changed from L to

Options

(a) 4 L
(b) 2 L
(c) L/2
(d) L/4

Correct Answer:

L/2

Explanation:

At resonance ω = 1 / √(LC)

Since ω is constant,

Therefore, LC = L’C’ = L’ × 2C

⇒ L’ = L / 2

AIEEE2004
admin:

Related Questions

  1. A particle of mass m executes simple harmonic motion with amplitude
  2. A disc of moment of inertia (9.8/π²) kg m² is rotating at 600 rpm. If the frequency
  3. A steady current is passing through a linear conductor of non-uniform cross-section.
  4. A block of wood weighs 10 N and is resting on an inclined plane. The coefficient
  5. A particle is executing SHM along a straight line. Its velocities at distances