Home
Class 12
PHYSICS
Obtain the resonant frequency and Q-fact...

Obtain the resonant frequency and Q-factor of a series LCR circuit with `L = 3.0 H, C = 27 muF, and R = 7.4 Omega`. It is desired to improve the sharpness of the resonance of the circuit by reducing its ‘full width at half maximum’ by a factor of 2. Suggest a suitable way.

Text Solution

Verified by Experts

`omega_(0)=111 "rad s"^(-1), Q=45`
To double Q without changing `omega_(0)`, reduce R to 3.7 `Omega`.
Promotional Banner

Similar Questions

Explore conceptually related problems

Obtain the resonant frequency omega_(r) of a series LCR circuit with L = 2.0 H. C = 32muF , and R=10Omega . What is the Q - value of this circuit?

A series LCR circuit having L = 0.4 H, C = 0.1 muE and R = 500 Omega is connected to an A.C. source of variable frequency. The quality factor of the circuit is

Calculate the resonant frequency and Q-factor of a series L-C-R circuit containing a pure inductor of inductance 3H, capacitor of capacitance 27muF and resistor of resistance 7.4Omega

Resonant frequency of a series LCR circuit is 600 H_Z . Quality factor of the circuit is 4. Bandwidth is

In a series circuit R=300Omega, L=0.9H, C=2.0 mu F, omega=1000 rad/s. The imedance of the circuit is

A sinusoidal voltage of peak value 283 V and frequency 50 Hz is applied to a series LCR circuit in which R = 3Omega, L = 25.48 mH, and C = 796 muF . Find (a) the impedance of the circuit, (b) the phase difference between the voltage across the source and the current, (c) the power dissipated in the circuit, and (d) the power factor.

Calculate the resonent frequency of Q-factor (Quality factor) of a series L-C-R circuit containing a pure inductor of inductance 4H, capacitor of capacitance 27 muF and resister of resistance 8.4Omega .

Quality factor of a series LCR circuit decreasesfrom 3 to 2. Resonant frequency is 600 Hz. Change in bandwidth is