Physics (AS & A Level) · May / June 2025 · Paper 52 · Question 2
9702
As printed in the paper
The question as text
A student investigates a circuit containing capacitors. The circuit is connected with a capacitor of capacitance A, as shown in Fig. 2.1. V X Y A P Q Z Fig. 2.1 Two capacitors, each of capacitance C, are connected in parallel between P and Q. Initially, switch X and switch Z are closed and switch Y is open. Switches X and Z are opened. Switch Y is then closed. The maximum potential difference between P and Q is measured using the voltmeter. This procedure is repeated and the mean maximum potential difference V between P and Q is determined. The experiment is then repeated by changing the number n of capacitors, each of capacitance C, connected in parallel between P and Q. It is suggested that V and n are related by the equation EA = V(nC + A) where E is the electromotive force (e.m.f.) of the battery. 1
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)[2]
2(d)(i)[2]
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.