Physics (AS & A Level) · Feb / March 2020 · Paper 52 · Question 2
9702
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The question as text
A student investigates the discharge of a capacitor through a resistor as shown in Fig. 2.1. A E C R Fig. 2.1 The student initially closes the switch and charges the capacitor. The switch is then opened and a stop-watch is started. The capacitor discharges through the resistor. At different times t the current I is measured. It is suggested that I and t are related by the equation R E e I – RC t = e o where E is the e.m.f. of the power supply, C is the capacitance of the capacitor and R is the resistance of the resistor.
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2(a)[1]
2(b)[2]
2(c)(i)[2]
2(c)(ii)[2]
2(c)(iii)[2]
2(c)(iv)[1]
2(d)(i)[3]
2(d)(ii)[1]
2(e)[1]
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