# gopo - Circuits with Charging Capacitors Performed by Adam...

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Circuits with Charging Capacitors Performed by: Adam Edison With: Tom and Camilla Abstract The goal of the lab was to determine which of the four RC circuits has the longest time constant. We did this by Charging up all of the capacitors in each of the different RC circuits and then discharged them. The RC circuit in which the light bulb stayed lit for the longest time after the beginning of the discharge has the longest time constant. Prediction We predicted that the RC circuit with the two capacitors in parallel would have the longest time constant and the RC circuit with the capacitors in series would have the shortest time constant. To predict the equation we start by going around the loop, with V being the voltage from the battery, Q being charge, being capacitance, I being current, and R being Resistance. V - Q/C –I*R=0 (1) After Implying that the change of the charge with respect to time is equal to the current we can set up the following equation with RC being the time constant. dQ/dt + Q/RC= V/R

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## This note was uploaded on 11/08/2010 for the course LAW 4328 taught by Professor Yang during the Spring '10 term at École Normale Supérieure.

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gopo - Circuits with Charging Capacitors Performed by Adam...

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