Explain why an AC current can flow through the capacitor and why capacitor blocks DC
The capacitor blocks DC current in a circuit, whereas AC current is being passed. This explains by the reactance of a capacitor (x) = 1/(2pif*C). Capacitor reactance is highly dependent on the frequency of the AC voltage. DC current is constant = 0
AC current does not have direction. No impedance. AC current bypasses resistance!