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Homework Help: Calculate leakage resistance

  1. May 16, 2009 #1
    1. Calculate the leakage resistance across a capacitor of 100pF that has a relative permittivity of 12 and a resistivitty of rho=10*14

    2. Rl=rho x Er x Eo /C
    Rl=10*14 x 12 x 8.85*-12 / 100*-12

    3. Rl=1.062*15

    surley the leakage resistance cant be that high my freind said it should be this formula

  2. jcsd
  3. May 17, 2009 #2
    I calculated

    [tex]R_{leak}=1.062\times10^{14}[/tex] ohms

    Sure it's a big value - not something you measure with a multimeter! - but an ideal capacitor would have infinite leakage resistance.
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