Which of the following circuit elements is used to 'block' DC in an electronic circuit?

Solution

Acapacitor(originallyknownas condenser) is a passive two-terminal electrical component used to store energy in an electric field. Capacitors are widely used in electronic circuits for blocking direct current while allowing alternating current to pass, in filter networks, for smoothing the output of power supplies,intheresonantcircuitsthattuneradios to particular frequencies, in electric power transmissionsystemsforstabilizingvoltageand power flow, and for many other purposes.