| ⇦ | 
| ⇨ |
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
Related Questions: - If a spring of spring constant k stretched by a length x under tension T, the energy
- An object placed at 20 cm in front of a concave mirror produces three times
- A point source emits sound equally in all directions in a non-absorbing medium.
- The value of workdone for rotating a magnet of magnetic moment M by an angle θ in external
- The maximum wavelength of radiations emitted at 900K is 4 µm. What will be the maximum
Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If a spring of spring constant k stretched by a length x under tension T, the energy
- An object placed at 20 cm in front of a concave mirror produces three times
- A point source emits sound equally in all directions in a non-absorbing medium.
- The value of workdone for rotating a magnet of magnetic moment M by an angle θ in external
- The maximum wavelength of radiations emitted at 900K is 4 µm. What will be the maximum
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply