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    Question

    Which of the following circuit elements is used to

    'block' DC in an electronic circuit?
    A Resistances Correct Answer Incorrect Answer
    B Capacitance Correct Answer Incorrect Answer
    C Inductance Correct Answer Incorrect Answer
    D Diode Correct Answer Incorrect Answer

    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.

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