Xc=1/(2Pifc)% T4 t+ p- p% d6 g$ v$ p1 Q1 C8 ]6 ]' Z
if f=0 Xc is infinite, so capacitor block DC. " L+ Y+ d, u0 n# S# `2 b% qfor AC, frequence is 60Hz(in north american), so Xc is a specific value. as a result , it can conduct AC.
% d+ x3 _2 ]" }4 ?' j 6 }, ?5 {) J! L# Z8 |. v- n1 P! PI would like to ask a question, just for curiosity, if you do not mind. ! [6 G3 g3 g: D. R) q6 |! y# Q/ x, o8 G2 g4 s1 I
Is that a real question during your interview for an electrician job?
狗仔卡
鲜花(
鸡蛋(
发表于 2009-1-12 19:16
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
显身卡
发表于 2009-1-16 21:47
