An applied voltage signal consists of a superposition of DC voltage and AC voltage of high frequency. The circuit consists of an inductor and a capacitor in series. Show that the DC signal will appear across C whereas AC signal appears across L.
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In direct current (DC), the electric charge (current) only flows in one direction. Electric charge in alternating current (AC), on the other hand, changes direction periodically. The voltage in AC circuits also periodically reverses because the current changes direction.
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AC means Alternating Current and DC means Direct Current. AC and DC are also used when referring to voltages and electrical signals which are not currents! ... An electrical signal is a voltage or current which conveys information, usually it means a voltage. The term can be used for any voltage or current in a circuit.
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