CAPE Physics Unit 2 · 2011 · Paper 1 · Question Q22

The LED in the circuit above lights when

1. (A)S_1 and S_2 are open
2. (B)S_1 is open and S_2 is closed
3. (C)S_1 is closed and S_2 is open
4. (D)S_1 is closed and S_2 is closed

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