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Thread: Surface mount components
www.piclist.com/techref/index.htm?key=surface+mount+components
face picon face BY : Olin Lathrop email (remove spam text)



> Yeah, who/what can be trusted at all anymore? I put my sine
> generator to the cap marked 220 thru a 10K [5%] resistor, and
> adjusted freq until the voltage across the cap dropped to 50%
> on the scope. Using Xc = 1/(2*pi*F*C)

That's the magnitude of the impedance, but is not valid the way you used it
due to being 90 degrees out of phase with the resistor.


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Olin Lathrop, embedded systems consultant in Devens Massachusetts
(978) 772-3129, TakeThisOuTolinKILLspamspamSTOPspamembedinc.com, http://www.embedinc.com

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