Resonance

Graph showing variation of current with frequency of $AC$ source in a series $LCR$ circuit is,

A series RLC is to be designed for channel selection in a remote. Which of these combinations will you choose?

The reading of ammeter in the circuit shown will be

In the circuit shown in figure current in the circuit is $\left(R=51.5\mathrm{\Omega }\right)$

Voltage across resistance $\left({\mathrm{V}}_{\mathrm{R}}\right)$ versus frequency graph of LCR circuit is shown. The bandwidth of circuit is:

In series L-C-R circuit $L=2.0 \mathrm{H}, C=32 \mathrm{\mu F}$ and $R=10 \mathrm{\Omega }$, find $Q$-factor of resonance circuit.

In the following circuit the readings of AC voltmeters and ammeters will be respectively-

Assertion: In series LCR circuit, the resonance occurs at one frequency only.
Reason: At resonance the inductive reactance is equal and opposite to the capacitive reactance.

The inductance of the oscillatory circuit of the radio station is $10 \mathrm{mH}$ and its capacitance is $0.25 \mathrm{\mu F}$. Taking the effect of resistance negligible, wavelength of the broadcasted waves will be (velocity of light $=3.0\times {10}^8 \mathrm{m} {\mathrm{s}}^{-1},\mathrm{ }\mathrm{\pi }=3.14$)

In LCR series circuit $L=4H, C=36 \mu F \mathrm{and} R=16\Omega$, then bandwidth of resonance is 

The bandwidth of resonance in the $L-C-R$  A.C. circuit is proportional to inductance.

If the value of C in a series RLC circuit is decreased, the resonant frequency.

What will be the reading in the voltmeter and ammeter of the circuit shown?

For an RLC circuit driven with voltage of amplitude $v_m$ and frequency ${\text{ω}}_0=\frac{1}{\sqrt{LC}}$ the current exhibits resonance. The quality factor, $Q$ is given by

The inductance of the oscillatory circuit of the radio station is $10 \mathrm{mH}$ and its capacitance is $0.25 \mathrm{\mu F}$. Taking the effect of resistance negligible, wavelength of the broadcasted waves will be (velocity of light $=3.0\times {10}^8 \mathrm{m} {\mathrm{s}}^{-1},\mathrm{ }\mathrm{\pi }=3.14$)

At a frequency more than the resonance frequency, the nature of an anti-resonant circuit is-

A resistor $R$, an inductor $L$, a capacitor $C$ and voltmeters $V_1, V_2$ and $V_3$ are connected to an oscillator in the circuit as shown in the adjoining diagram. When the frequency of the oscillator is increased upto resonance frequency, the voltmeter reading (at resonance frequency) is zero in the case of,

Which one is the expression of resonant frequency in a series resonant circuit?

A parallel L-C circuit comprises of a 5H inductor and $5\mathrm{\mu F}$ capacitor. The resonant frequency of the circuit in $\mathrm{Hz}$ is 

In the given figure, which point shows the resonant state?