Is Capacitor a Unilateral or Bilateral Device?

Is Capacitor a Unilateral or Bilateral Device ?
If Unilateral then why +'ve & -'ve terminals ?

Replies

  • Ramani Aswath
    Ramani Aswath
    Da Vinci
    Is Capacitor a Unilateral or Bilateral Device ?
    Do you mean polarized?
    Electrolytic capacitors have anodic oxide coating that works as a dielectric. This is self repairing and will function only when the electrode with the film ( foil or sintered pellet) is positive. If reverse polarized electrolytic action will destroy the dielectric Non electrolytic capacitors (like paper capacitors) have an independent dielectric and are non polarized.

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