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Passive or Active Components

  1. Jan 21, 2009 #1
    Of Capacitors and Inductors which is passive or active ? And by what definition ?
  2. jcsd
  3. Jan 21, 2009 #2
    My guess is that both are passive. What I am confused is that capacitors can both absorb and release energy (after absorbing) so how come its not both active and passive ?
  4. Jan 21, 2009 #3
    In general active components provide gain (amplifiers), where as RLCs are all passive components. They cannot provide gain.
  5. Jan 21, 2009 #4
    Can someone please explain ?
  6. Jan 21, 2009 #5
    Passive components use only the power of the input 'signal', voltage and current.

    Active components need and additional source of power to make them work...transistors or valves (tubes).
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