Capacitance of a Capacitor

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  • iamakda
    Member
    • Mar 2012
    • 46
    • Denmark

    #1

    Capacitance of a Capacitor

    Dear all,

    which formula is correct for the calculation of the capacitance?

    1). C = k*e0*A/d or 2). C = e0*er*A/d ???

    e= epsilon
    A=area of the plates
    d=distance between the plates
    k=dielectric constant

    and if i want to calculate the capacitance in Farads then in what units the Area and Distance should be:

    Area in m2 or cm2 ???
    Distance in m or cm????

    Thanks for the help.
  • spleenharvester
    Badcaps Veteran
    • Mar 2010
    • 882
    • UK

    #2
    Re: Capacitance of a Capacitor

    Never seen the equation before but area should be m2 and distance in m, given they are SI Units. I may be wrong.
    Dell E7450 | i5-5300U | 16GB DDR3 | 256GB SSD

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