Physics (AS & A Level) · May / June 2020 · Paper 53 · Question 2
9702
As printed in the paper
The question as text
A student investigates the discharge of a capacitor through a resistor using the circuit shown in Fig. 2.1. V 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 time t the potential difference V across the capacitor is measured. It is suggested that V and t are related by the equation V C Q e RC t 0 = - e c o m where Q0 is the charge of the fully charged capacitor, C is the capacitance of the capacitor and R is the resistance of the resistor.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
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]
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.