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Qfactor of an inductor 
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#1
Jan2909, 04:15 PM

P: 4

Hi all,
For a resonant system, there is usually a transfer of energy into another kind of energy back an forth (kinetic to potential; electric to magnetic, etc). for an LC tank or an RLC circuit, we know that the energy is transfered from as an electric field between the capacitor's plate to a magnetic field around an inductor coil. But, how come we can define a qfactor for an inductor alone? Thank you very much for your help :) 


#2
Jan2909, 05:00 PM

Sci Advisor
PF Gold
P: 2,245

You can't.
The Qfactor is a measure of how closely a real inductor comes to behaving like an ideal inductor; an ideal inductor would have an infinite Q at all frequencies but real inductors are made from resistive wire etc so there are always losses. 


#3
Jan2909, 06:02 PM

P: 1,636

You can define a Qfactor for many situations where oscillation occurs.
Inductors, and capacitors have a Q when are subjected to AC. It sort of is a measure of deviation from an ideal component as said. 


#4
Mar309, 11:24 PM

P: 1

Qfactor of an inductor



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