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Unformatted text preview: bjective of this laboratory exercise and being able to identify the relationship of the time constant in respects to the resistance and the capaci PHY 213 020 2009 Authored by: Tuoxin Cao, Terpsichore Lindeman l 1 = otal + = + . = . Rbox Rgenerator 50 2 5 52 5 l 2 otal= Rbox+ Rgenerator=37.5 +2.5 =40.0 l 3 otal= Rbox+ Rgenerator=62.5 +2.5 =65.0 l 4 otal= Rbox+ Rgenerator=12.5 +2.5 =15.0 Trial 1 = = = time scale value10 100 s10 10 s Trail 2 =time scale value10=250 s10=25 s Trial 3 =time scale value10=250 s10=25 s Trial 4 =time scale value10=50 s10=5 s Trial 1 % = uncertainty 100 10 = % s100 s 10 Trail 2 %uncertainty=10025 s250 s=10% Trial 3 %uncertainty=10025 s250 s=10% Trial 4 %uncertainty=1005 s50 s=10% 80 F 0.210 F 0.240 F 0.270 F 0.300 F The RC Circuit  7/8/2009 The RC Circuit  7/8/2009 Section #020 Experiment #:3 Date performed: Wednesday, July 1, 2009 Date due: Wednesday, July 8, 2009 The RC Circuit Group 3 Principal investigator: Terpsichore Lindeman (tmli222@uky.edu) Skeptic & Researcher: Tuoxin Cao (tcao2@uky.edu) GRADE RECEIVED 95 TA Zheng Zhu  Kreswell Neely Role I DC AD RC Q1 Q2 PI PG I introduction DC data and calculation AD analysis and discussion RC results and conclusion Q1/Q2 quiz/prelab PI principal investigator points PG personal grade Table of Contents T HE RC C IRCUIT The examination of a circuit composed of a resistor and capacitor in series was the objective of this laboratory exercise and being able to identify the relationship of the time constant in respects to the resistance and the capacitance. Introduction This experiment was to further our knowledge and usage of the TDS1002 digital oscilloscope and to observe and correlate relationship of a RC circuit (resistor capacitor) (Ellis S. L., Summer 2009), which is a circuit of a capacitor and resistor in series. Capacitors that are is series have the same value of current reaching the surface of their capacitors, thus they attain the same charge, so the total charge = = = Qtotal Q1 Q2 Qi . Moreover, as known in a series circuit the total voltage is equal to the sum of all voltages. Below is the derivation of the calculation of how to add capacitance in series. = + = + Vtotal V1 V2 Q1C1 Q2C2 = + = = = + ( ) QtotalCtotal Q1C1 Q2C2Qtotal Q1 Q2thus 1Ctotal 1C1 1C2 equation 1 As seen from equation 1, capacitance in series is summated as resistors in parallel circuits, though it is notable to state that the total capacitance of a series circuit will be less than that of each capacitor. An RC circuit has the following rules due to the fact that a resistor and capacitor are present and that is that the current and the charge on the capacitor are not independent of time....
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 Summer '08
 Cao
 Physics

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