5 marksCapacitors
CAPE Physics Unit 2 · 2008 (Rest of Region) · Paper 2 · Question 1(b)
Plot the required linear graph using the student's results on the provided grid.
The mark scheme is shown once you've answered.
Practise this questionOther parts of this question
- 1(a)Write a suitable linear equation and complete the table of
t/\text{s},I/\mu\text{A}, and\ln(I/\mu\text{A}).[3 marks] - 1(c)(i)Use the graph to find the value of the current at time
t = 0.[2 marks] - 1(c)(ii)Use the graph to find the time constant for the discharge.[2 marks]
- 1(d)(i)On the provided grid, sketch a graph showing how the potential difference across the capacitor varies with time during this discharge.[2 marks]
- 1(d)(ii)Write an equation for this voltage change using the actual values for the constants in it.[1 mark]
More practice: the rest of this paper · more Capacitors questions · all CAPE Physics Unit 2 past papers