Physics (AS & A Level) · May / June 2023 · Paper 21 · Question 6
9702
As printed in the paper
The question as text
A metal wire in a circuit has a length of 1.8 m and a cross‑sectional area of 1.5 × 10–6 m2. The total number of free electrons (charge carriers) in the wire is 2.3 × 1023. There is a current in the wire so that a charge of 172 C moves past a fixed point in the wire in a time of 2.5 minutes.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
6(a)[1]
6(b)[3]
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.