CAPE Physics Unit 2 · 2011 · Paper 1 · Question Q18

In the diagram above, the current (I) flowing through the n-type semiconductor is mainly due to

1. (A)holes moving from A to B
2. (B)electrons moving from A to B
3. (C)electrons moving from B to A
4. (D)holes moving from A to B and electrons moving from B to A

This question uses a figure or table from the paper — you'll see it when you practise.