Student Login

Home›Chapters›Alternating Current PYQs›Resonance, Bandwidth & Q Factor›Question 111

JEE Main 2004 (AIEEE) · Resonance, Bandwidth & Q Factor

Resonance, Bandwidth & Q Factor question from JEE Main 2004 (AIEEE)

Q111JEE Main 2004 · AIEEEEasy

Resonance, Bandwidth & Q Factor

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

Show answer and solution

Answer: (a)

For the same $f_0$ , $LC$ must stay constant.
$L'(2C) = LC \Rightarrow L' = \dfrac{L}{2}$
So the answer is (a) $L/2$ .

Report a mistake

More questions on Resonance, Bandwidth & Q Factor

A wire of resistance R is connected in series with an inductor of reactance ω L. Then…NEET 2000 (AIPMT)
A series L-C-R circuit is connected to a source of A.C. current. At resonance, the phase…NEET 1994 (AIPMT)
To reduce the resonant frequency in an L-C-R series circuit with a generator,MHT CET 2026 (19 May, Shift 2)
What is the value of inductance L for which the current is maximum in series LCR circuit…MHT CET 2026 (13 May, Shift 1)
In a series LCR circuit, the inductance L = 20 mH, capacitor C = 2 μ F and resistance R =…MHT CET 2026 (12 May, Shift 1)
The LC series resonant circuit produces a resonant frequency ' f '. If L is tripled and…MHT CET 2026 (17 Apr, Shift 1)
An inductor of inductance 2 μ H is connected in series with a resistance, a variable…MHT CET 2026 (16 Apr, Shift 2)
A series resonant circuit consists of an inductor 'L' and capacitor 'C' which produces…MHT CET 2026 (15 Apr, Shift 2)