Question

Capacitor blocks__________ after long time.

(a) alternating current

(b) direct current

(c) both alternating and direct current

(d) neither alternating nor direct current

This question was posed to me in an online interview.

This interesting question is from Capacitance and the Capacitor in portion Capacitance and Capacitors of Basic Electrical Engineering

Answer 1

Correct answer is (b) direct current

The explanation is: Capacitor blocks direct current at steady state and pass alternating current.