Xc=1/(2Pifc) * E7 {5 [3 v+ p( V/ B7 a4 P5 `' bif f=0 Xc is infinite, so capacitor block DC. 4 n( c6 [# t1 D$ @. y! }6 ~for AC, frequence is 60Hz(in north american), so Xc is a specific value. as a result , it can conduct AC.
]9 ~# g) S8 I- V0 i5 l3 O$ N) G. M+ q; ^ n1 B
I would like to ask a question, just for curiosity, if you do not mind.) e* \9 _6 A. Q7 O5 Z$ f
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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
