Transient Response of RLC circuits

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The objecive is to study the evolution of voltage across the capacitor in response to a voltage step applied to the series circuit. For a theoretical discussion refer to the Online Course on ExpEYES. Depending on the LCR values, the response can be underdamped, critically damped or overdamped. We have selected:

The connection diagram is shown in the schematic below. The trace can be fitted with a damped sinusoid by selecting a region. The data can be exported or saved. The exported data in CSV format is HERE. It can be analysed using this Python program to extract the frequency and damping factor.

Result of the same experiment done on the PC is shown below. A 3000 turn coil is used as the inductor, inductance is around 120 mH and the resistance of the coil is around 500 Ohms.

RC Steady state

RC Steady state