Xc=1/(2Pifc) 6 F0 e1 F. A6 e% w' z1 ?if f=0 Xc is infinite, so capacitor block DC. ) T% K6 h x% S2 \- Y+ j# M( @& ^for AC, frequence is 60Hz(in north american), so Xc is a specific value. as a result , it can conduct AC.
原帖由 爱城电工 于 2009-1-12 19:16 发表 9 ]; o4 n; e- B' o1 V
为什么电容器阻断DC 而通AC?
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. O- [' L! d& qI would like to ask a question, just for curiosity, if you do not mind. : T h' {' |6 m 6 E; n* B4 v2 U- dIs 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
