Quality Factor

Metal detector works on the principle of 

At the airport, a person is made for walking through a doorway of a metal detector for security reasons. If he is carrying anything made of metal, the metal detector emits a sound.

How Do Metal Detectors Work?

Parallel resonant circuit is sometimes called as

Why is it called a rejector circuit?

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

Which of the following combinations should be selected for better tuning an L.C.R. circuit used for communication?

Which of the following combination should be selected for better sharpness of $LCR$ tuning circuit?

A series resonant $LRC$ circuit has a quality factor ( $Q-$ factor) $=\mathrm{0,4}$ . $R=2 \mathrm{k}\mathrm{\Omega }, C=0.1 \mathrm{\mu }\mathrm{F}$ then the value of inductance is

In a series $LRC$ circuit having $L=30 \mathrm{m}\mathrm{H}, R=8 \mathrm{\Omega }$ and the resonant frequency is $50 \mathrm{H}\mathrm{z}$. The quality factor of the circuit is

In $\mathrm{LRC}$ circuit if resistance increases, quality factor

A series $LCR$ circuit has $R=5 \mathrm{\Omega }, L=40 \mathrm{m}\mathrm{H}\mathrm{ }$ and $C=1 \mathrm{\mu }\mathrm{F}$ , the bandwidth of the circuit is

The $Q$factor of series $LCR$ circuit with $L=2\mathrm{H} , C=32 \mathrm{\mu }\mathrm{F}$ and $R=10 \mathrm{\Omega }$ is

A circuit consists of an inductor of inductance $L$, a capacitor of capacitance $C$ and a resistor of resistance $R$ in series. If $\omega L<\frac{1}{\omega C}$, mark the correct option pertaining to voltage. It ____________.

The values of $L$, $C$ and $R$ for a circuit are $1 H$, $9 F$ and $3 \mathrm{\Omega }$. What is the quality factor for the circuit at resonance?

A resistor of $R=6\mathrm{\Omega }$, an inductor of L = 1 H and a capacitor of $C=17.36 \mathrm{\mu }\mathrm{F}$ are connected in series with an AC source. Find the Q - factor.

An alternating voltage, of angular frequency $\omega$, is induced in an electric circuit, consisting of an inductance $L$ and a capacitance $C$, connected in parallel. Then, across the inductance coil

$\left(i\right)$ current is maximum when ${\omega }^2=\frac{1}{LC}$

$\left(ii\right)$ current is minimum when ${\omega }^2=\frac{1}{LC}$

$\left(iii\right)$ voltage is minimum when ${\omega }^2=\frac{1}{LC}$

$\left(iv\right)$ voltage is maximum when ${\omega }^2=\frac{1}{LC}$