Copy and complete table 6, quoting the values of ‘ln (V)’ to three significant figures. b) Plot a graph of ‘ln (V)’ (y-axis) against ‘t’ (x-axis). Use your graph to determine the time constant of the discharge circuit. c) The resistance R of the resistor was 22 kΩ. Determine the capacitance C of the capacitor.

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a) Copy and complete table 6, quoting the values of ‘ln (V)’ to three significant figures. b) Plot a graph of ‘ln (V)’ (y-axis) against ‘t’ (x-axis). Use your graph to determine the time constant of the discharge circuit. c) The resistance R of the resistor was 22 kΩ. Determine the capacitance C of the capacitor.
In an experiment to measure the capacitance, C, of a capacitor, the circuit in
Figure 6 was used to charge the capacitor then discharge it through resistor of
known resistance R.
(exte
Parameter
t(s)
V (V)
In (V)
hollosaso a tom
osso plate
+
Battery T
0
9.00
Figure 6: Circuit diagram for question 6
As the capacitor discharged, the voltage across it was measured every
15 seconds using a digital voltmeter. The measurements are shown in Table 6
below.
9V
15
Table 6: Time and Voltage data for capacitor being discharged
7.64
sisc to
30
C
45
Switch
6.52 5.56
Values
60
R
75
90
4.66 4.00 3.4
105
120
2.86 2.46
Transcribed Image Text:In an experiment to measure the capacitance, C, of a capacitor, the circuit in Figure 6 was used to charge the capacitor then discharge it through resistor of known resistance R. (exte Parameter t(s) V (V) In (V) hollosaso a tom osso plate + Battery T 0 9.00 Figure 6: Circuit diagram for question 6 As the capacitor discharged, the voltage across it was measured every 15 seconds using a digital voltmeter. The measurements are shown in Table 6 below. 9V 15 Table 6: Time and Voltage data for capacitor being discharged 7.64 sisc to 30 C 45 Switch 6.52 5.56 Values 60 R 75 90 4.66 4.00 3.4 105 120 2.86 2.46
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