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Fill Mica in capacitors

  1. Nov 21, 2012 #1
    If fill mica between the air gaps between capacitors will how?
    We need consider mica as conductor?
     
  2. jcsd
  3. Nov 21, 2012 #2

    berkeman

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    No, mica is an insulator. Look up the dielectric constant of mica, and compare that value to the dielectric constant of air. Do you see now why mica is used in capacitor construction?
     
  4. Nov 22, 2012 #3
    If the dielectric constant of mica is 5, then apply this formula?(C=κC。)

    so make the capacitance of that capacitors higher?is it like this?
     
  5. Nov 22, 2012 #4

    NascentOxygen

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  6. Nov 22, 2012 #5

    berkeman

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    Yes. And then add in the comment from NascentOxygen, which I didn't even think of...
     
  7. Nov 22, 2012 #6
    Mica has been a fantastic dielectric but is abandoned now. We have ceramics.
     
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