Xc=1/(2Pifc)# e% T6 b W, ~+ ]$ z
if f=0 Xc is infinite, so capacitor block DC.% g' m4 j; H; f7 h: W, q
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 * n% \8 ~1 M+ v" L. T! o, V为什么电容器阻断DC 而通AC?
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I would like to ask a question, just for curiosity, if you do not mind." y. T' v4 }: z) e: A
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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
