Transient oscillations in electric circuits occur if the capacitive and inductive components which form an oscillator are excited by a pulse or a fast voltage or current change. The RLC circuit resonates at a particular frequency (its "natural frequency"), its oscillation is reduced over time (damped) by the resistance R of the circuit.

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The program Damped Resonant Circuit shows the reaction of a series RLC combination to a Dirac impulse. The user may set the parameters of the three components and cac immediately see the effect of the components.