Xc=1/(2Pifc) 0 K' |0 j5 U( N& v7 Oif f=0 Xc is infinite, so capacitor block DC. * b' k7 D' e6 a2 q3 n: v6 Bfor AC, frequence is 60Hz(in north american), so Xc is a specific value. as a result , it can conduct AC.
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I would like to ask a question, just for curiosity, if you do not mind.$ C, i/ b7 L% m4 R) n
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Is that a real question during your interview for an electrician job?