LAB 6 RC time Constant

# LAB 6 RC time Constant - PH 202L P1 Experiment 6 The RC...

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PH 202L – P1 Experiment 6: The RC Time Constant Abstract

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We charged and discharged the capacitor while timing how long it took for the capacitor to fully charge or discharge. As the capacitor got closer to being fully charged or discharged, it took a much longer time for the voltage to decrease than when the capacitor first starts charging/discharging. For example, it took only 9 second for the capacitor to discharge from 10 to 9 V, whereas it took 152 seconds for the capacitor to discharge from 2 to 1 V. Introduction When a capacitor is connected to a DC power supply or battery, charge builds up on the capacitor plates, and the potential difference or voltage across the plate’s increases until it equals the voltage of the source. At any time, the charge Q of the capacitor is related to the voltage across the capacitor plates by Q=CV where C is the capacitance of the capacitor in Farads. The rate of voltage rise depends on the capacitance of the capacitor and the resistance in the circuit. Similarly, when a charged capacitor is discharged, the
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LAB 6 RC time Constant - PH 202L P1 Experiment 6 The RC...

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