← all questions · Physics · 9702 · Paper 4 variant 1

6(b)(ii)3 marks

A capacitor of capacitance C is discharged through a resistor of resistance R when a switch is closed at t = 0, the initial p.d. across the capacitor being 12 V.

Use Fig. 6.2 to determine the time constant τ of the circuit in Fig. 6.1.

9702/41/M/J/24Cambridge International AS & A Level Physics 9702 · May/June 2024 · Paper 4 variant 1 · Question 6(b)(ii)

Fig. 6.2 — see the question text for what it shows
Fig. 6.1 — see the question text for what it shows

Your answer

Suggested time: 5 min