Xc=1/(2Pifc) & n% u( `! @6 Q4 {# vif f=0 Xc is infinite, so capacitor block DC. 4 [3 Z3 Z9 k w+ i8 k, Wfor AC, frequence is 60Hz(in north american), so Xc is a specific value. as a result , it can conduct AC.
C; z% ^2 E' @' q; g; ~+ ^" ~% W( o+ c
I would like to ask a question, just for curiosity, if you do not mind.) y4 p- n$ ^( a
: q& A6 ~$ Y+ B
Is that a real question during your interview for an electrician job?
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发表于 2009-1-12 19:16
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发表于 2009-1-16 21:47
