Q-factor of an inductor

  • Thread starter Dominique
  • Start date
  • #1
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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 q-factor for an inductor alone?

Thank you very much for your help :)
 

Answers and Replies

  • #2
f95toli
Science Advisor
Gold Member
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You can't.
The Q-factor 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
1,497
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You can define a Q-factor 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.
 

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