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Capacative reactance formula

Discussion in 'General Electronics Discussion' started by blokefrommars, Dec 18, 2012.

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  1. blokefrommars


    Dec 18, 2012
    Please can anyone explain to me why we use Pi in the formula for capacative reactance. The best explanation that i have found is because it is a constsnt. That bit i understand but i thought that was in relation to circles, circumferences and diameters and all that stuff. I don't understand how it relates to electronics. HELP PLEASE. MANY THANKS!!!
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    Jan 21, 2010
    Because there is an almost magical relationship between e and pi, and this is one of those times when it shows up.
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