In an L - C - R circuit inductance is changed from L to L/2. To keep t

1.	In an L - C - R circuit inductance is changed from L to L/2. To keep the same resonance frequency, C should be changed to(a) 2C (b) \(\frac{C}{2}\) (c) 4C (d) \(\frac{C}{4}\)
Answer» Answer is : (a) 2C v = \(\frac{1}{\sqrt{LC}}\) When L is changed to L/2, C must be changed to 2C to keep v same.

In an L - C - R circuit inductance is changed from L to L/2. To keep the same resonance frequency, C should be changed to(a) 2C (b) \(\frac{C}{2}\) (c) 4C (d) \(\frac{C}{4}\)

Answer»

Answer is : (a) 2C

v = \(\frac{1}{\sqrt{LC}}\)

When L is changed to L/2,

C must be changed to 2C to keep v same.

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In an L - C - R circuit inductance is changed from L to L/2. To keep the same resonance frequency, C should be changed to(a) 2C (b) \(\frac{C}{2}\) (c) 4C (d) \(\frac{C}{4}\)

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