Q is the quality factor of series resonant circuits

AI Thread Summary
The quality factor (Q) of series resonant circuits is expressed as Q = wL/R, while for parallel resonant circuits, it is Q = R/wL, which can be confusing. The distinction arises from how energy is stored and dissipated in each type of circuit. Loaded resonant circuits include additional components that affect their Q factor, while unloaded circuits do not have these extra elements. To find the Q factor of a loaded resonant circuit, one must consider the effects of the load on the circuit's resistance and reactance. Understanding these concepts is crucial for analyzing circuit performance.
ng
Messages
31
Reaction score
0
Hi all

I read that Q,the quality factor of series resonant circuits is wL/R
------------>1/R sqrt(L/C).This i understand

1.but for parallel resonant it is R/wL...hmm but why is that?this i don quite get.

2.Then what do u mean by loaded resonant circuit and unloaded resonant circuit?

I hope to hear from u guys.
Thanx for ur time and help.
ng
 
Engineering news on Phys.org
Q is defined as the quotient of center frequency over bandwidth. From this definition follow the different formulas for parallel and series circuits.
 
i am sorry to be a dumbo but i wish u spelled it out. :redface:
 
Can someone tell me how to find the Quality factor of a loaded resonant circuit?

PLEASEEEEEEEEEEthanks a lot.
 

Thread 'Why does the amperage go real high if there is a low voltage short?'

I used to be an HVAC technician. One time I had a service call in which there was no power to the thermostat. The thermostat did not have power because the fuse in the air handler was blown. The fuse in the air handler was blown because there was a low voltage short. The rubber coating on one of the thermostat wires was chewed off by a rodent. The exposed metal in the thermostat wire was touching the metal cabinet of the air handler. This was a low voltage short. This low voltage...
View full post »
Thread 'How Does Jaguar's 1980s V12 Dual Coil Ignition System Enhance Spark Strength?'

Thread 'How Does Jaguar's 1980s V12 Dual Coil Ignition System Enhance Spark Strength?'

I have come across a dual coil ignition system as used by Jaguar on their V12 in the 1980's. It uses two ignition coils with their primary windings wired in parallel. The primary coil has its secondary winding wired to the distributor and then to the spark plugs as is standard practice. However, the auxiliary coil has it secondary winding output sealed off. The purpose of the system was to provide a stronger spark to the plugs, always a difficult task with the very short dwell time of a...
View full post »

Similar threads

About the definition of resonance frequency
Replies
40
Views
5K
Discrepancy in calculating Q Factor using Energy instead of R/wL
Replies
14
Views
2K
Q-Factor in Series-Parallel Shunt Circuits
Replies
6
Views
2K
Can Resonant Frequency Disassociate Water Molecules?
Replies
12
Views
3K
Help with understanding of RF theory-Kinetic inductance parametric amp
Replies
1
Views
2K
Finding the resonant frequency of this "discriminator" demod circuit.
Replies
2
Views
2K
Explicit Calculation of Q Factor of Loaded Tuned Circuits
Replies
9
Views
2K
Induction heater with high Q factor
Replies
8
Views
2K
How to Prove Equivalence of Quality Factor Expressions for High Q Resonators?
Replies
9
Views
3K
Series Coupling Capacitor as Impedance Inverter of Resonator
Replies
1
Views
2K

Hot Threads

Recent Insights

Back
Top