Question: What Is The Significance Of Quality Factor?

What is quality factor investing?

The quality factor refers to the tendency of high-quality stocks with typically more stable earnings, stronger balance sheets and higher margins to outperform low-quality stocks, over a long time horizon..

What is quality factor in RLC circuit?

The quality factor relates the maximum or peak energy stored in the circuit (the reactance) to the energy dissipated (the resistance) during each cycle of oscillation meaning that it is a ratio of resonant frequency to bandwidth and the higher the circuit Q, the smaller the bandwidth, Q = ƒr /BW.

On what factors quality factor depends?

The study of quality (Q-factor) of the series RLC circuit, in ac current is very fundamental especially for resonance condition and the value of quality factor of that circuit depends on the values of R, L and C for a particular range of source frequency.

What is the quality factor of a filter?

In a Band Pass Filter circuit, the overall width of the actual pass band between the upper and lower -3dB corner points of the filter determines the Quality Factor or Q-point of the circuit. This Q Factor is a measure of how “Selective” or “Un-selective” the band pass filter is towards a given spread of frequencies.

What is bandwidth and quality factor?

Bandwidth in terms of Q and resonant frequency: BW = fc/Q Where fc = resonant frequency Q = quality factor. A high Q resonant circuit has a narrow bandwidth as compared to a low Q. Bandwidth is measured between the 0.707 current amplitude points.

What happens to the quality factor when the bandwidth increases?

Quality factor is inversely proportional to bandwidth. So, if bandwidth increases quality factor decreases. … Quality factor is directly proportional to resonant frequency. So, if resonant frequency increases quality factor increases.

What is quality factor of a coil?

Quality factor (Q) or coil Q-factor is a dimensionless unit for the losses of a coil, quartz, or a resonator. For coils this refers to the ohmic losses of the coil-wire. They are inversely proportional for the coil quality and are calculated from the ratio of reactance to ohmic resistance.

What is the condition of resonance?

CONDITION FOR RESONANCE : Resonance occur only when the frequency of applied force is exactly equal to the natural frequency of the vibration of body and the applied force cause force vibration in the body .

Why should the quality factor have high value in receiving circuits?

The quality factor has high value in receiving circuits in order to get a sharp gain for the desired channel frequency.

What is the formula of quality factor?

The Q factor of the pMUT can be determined by the real part of the impedance frequency spectrum, which is defined as Q = fr/Δf, where the resonance frequency fr is the frequency at which the real part of the impedance reaches its maximum, Δf is the width of the peak at its half height, so-called 3 dB bandwidth.

What is Q factor Class 12?

Hint: The quality factor or ‘Q’ is a dimensionless quantity that describes the nature of damping in a resonating circuit. It is indeed the ratio of maximum energy stored in the circuit to the energy dissipated during each cycle of oscillation.

What is quality factor of capacitor?

Q Factor definition In an AC system, the Q factor represents the ratio of energy stored in the capacitor to the energy dissipated as thermal losses in the equivalent series resistance. For example, a capacitor that is capable of storing 2000 joules of energy while wasting only 1 joule has a Q factor of 2000.

How is Q factor calculated?

Q factor is the overall width of an installed crankset, measured parallel to the bottom bracket shell from the outside of one pedal insertion point to the other. You can think of it like this: the larger the Q factor, the farther apart your feet will be.

What does quality factor signify?

In physics and engineering the quality factor or Q factor is a dimensionless parameter that describes how underdamped an oscillator or resonator is. … Q factor is alternatively defined as the ratio of a resonator’s centre frequency to its bandwidth when subject to an oscillating driving force.