CAPE Physics Unit 2 · 2016 · Paper 1 · Question Q26

What is the output voltage, V_{\text{out}}, of the op-amp in terms of V_1, V_2 and V_3?

1. (A)-25V_1 - 30V_2 - 22V_3
2. (B)-5V_1 - 10V_2 - 5V_3
3. (C)-4V_1 - 2V_2 - 10V_3
4. (D)-\frac{1}{5}V_1 - \frac{1}{10}V_2 - \frac{1}{2}V_3

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