Lab #6 Datasheet (1 of 2) Table 1: Charging a Capacitor Time (s) Vc (V) VR (V) IR (A) In (IR) 1 - Vc/max In(1 - Vc/Vmax) 1-3 1.000 0.000 0.0 0.00 9.00 0.300 - 1.20 9 -2.59/64/30 1.0 2.59 1-2.59 1 -0.340 690210 (212) 1-1.54 2.0 4.38 4.38 4.62€0.159 0.513 ( 9-4.38 4.62/30 -4.38 9 -0.667 -1.87 -2.22 5.13 3.20 €0.109 19-6.66/2 34/30 6.6662.39€0.07% 1-2.55 5.0 7.35 €1.650.053 3.0 9-5.73 3.27/30 - 5.73 1 - 1.013 0.363 1 - 6.66 4.0 -1.347 0.26 19-7.55 11.65/30 01-7.35 - 1698 0.183 1-7.81 6.0 7.81 € 1.19 €0.040) 0.13220 9 -2,025 8.3 19-8.13/0.87/301-8.13 7.0 7 6.875 0.029 -2.343 0.090 -2.90 19-7-811.19/30 1-3.22 |-3.54 Vmax = V
Charging the Capacitor Lab #6 Analysis (1 of 2) 1. Calculate and record the potential across the resistor by subtracting Vc from Vmax for each time in Data Table 1. 2 Calculate and record the current through the resistor by dividing Ve by the 30.0 for each time in Data Table 1. 3. Calculate and record (1 - Vemax) each time in Data Table 1. 4. Calculate In(1 - Ve/max) and In(IR) for each time in Data Table 1. 5. Plot in (1 - VcNmax) vs. time and calculate the slope of your line of best fit slope of (1-ve/Vmax) vs Time = 6. Calculate the time constant (= -1/slope). Record as tv Time constant Slope t 7. Plot In(Ir) vs. time and calculate the slope from 2 points on your line of best fit. Slope of in(IR) vs time = 6. Calculate the time constant (= -1/slope). Record as TR. + Time constant = -1 Slope 7. Calculate the percent error of ty by using = RC as the accepted value. -RC Кс i el 100 X Calculate the percent error of tr by using t= RC as the accepted value. -RC) Кс IX 100 Lab #6 Page 8
Lab #6 Datasheet (1 of 2) Table 1: Charging a Capacitor Time (s) Vc (V) VR (V) IR (A) In (IR) 1 - Vc/max In(1 - Vc/Vmax)
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Lab #6 Datasheet (1 of 2) Table 1: Charging a Capacitor Time (s) Vc (V) VR (V) IR (A) In (IR) 1 - Vc/max In(1 - Vc/Vmax)
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