*From*: Neville Jones <njones@xxxxxxxxx>*To*: geocentrism@xxxxxxxxxxxxx*Date*: Wed, 26 Sep 2007 03:13:26 -0800

Philip,

They have used 50 **uF** in the denominator, which is 5x10^-5 F.

Hence, without a calculator, 6.28 x 100 (= 628) x 5 (= 3,140) x 10^-5 = 0.0314

Neville

-----Original Message-----From:pma15027@xxxxxxxxxxxxxxSent:Wed, 26 Sep 2007 15:04:18 +1000To:geocentrism@xxxxxxxxxxxxxSubject:[geocentrism] modern eduPlease tell me I aint nuts. I don't use formula often, so though I instinctively say reactance is I forget the application for microfarads when the unit is Farad in this equation.

Yet just look how this formula is applied in not one but two different websites.. . Note they correctly state for this formula, C is capacitance in farads yet substitute

microfaradsinto the equation. Isn't their answer wrong. shouldn't there be a 10^6 on the top line.50 micro Farads = 50 x 10 to the -6th. Farads.

Or am I just too old and missing something. Can a math man please check me out? I compute the answer should be 31,250 ohms. Philip.

Quote,

Now you can understand why it is said that the X

_{C}varies inversely with the product of the frequency and capacitance. The formula is:Where: X

_{C}is capacitive reactance in ohms, f is frequency in Hertz, C is capacitance in farads, p is 6.28 (2 X 3.1416) The following example problem illustrates the computation of X_{ C}.

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**References**:**[geocentrism] Re: Evolution***From:*Paul Deema

**[geocentrism] modern edu***From:*philip madsen

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